Home / 8,323.20-11,485.44-7,436.16

Finding the Fourth Proportional to 8,323.20, 11,485.44 and 7,436.16

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Solution

The fourth proportional to 8,323.20, 11,485.44 and 7,436.16 is: 10,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323.20 : 11,485.44 = 7,436.16 : x
  2. Step 2: Convert to fraction form
    8,323.20/11,485.44 = 7,436.16/x
  3. Step 3: Cross multiply
    8,323.20x = 11,485.44 × 7,436.16
  4. Step 4: Simplify right side
    8,323.20x = 85,407,569.51
  5. Step 5: Solve for x
    x = 85,407,569.51/8,323.20
  6. Step 6: Final answer
    x = 10,261.39

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Find fourth proportional to 4,161.60, 5,742.72 and 3,718.08
Half scale
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Double scale
Find fourth proportional to 8,324.20, 11,486.82 and 7,437.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.