Home / 8,436.36-11,640.06-4,899.72

Finding the Fourth Proportional to 8,436.36, 11,640.06 and 4,899.72

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Solution

The fourth proportional to 8,436.36, 11,640.06 and 4,899.72 is: 6,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.36 : 11,640.06 = 4,899.72 : x
  2. Step 2: Convert to fraction form
    8,436.36/11,640.06 = 4,899.72/x
  3. Step 3: Cross multiply
    8,436.36x = 11,640.06 × 4,899.72
  4. Step 4: Simplify right side
    8,436.36x = 57,033,034.78
  5. Step 5: Solve for x
    x = 57,033,034.78/8,436.36
  6. Step 6: Final answer
    x = 6,760.38

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Find fourth proportional to 4,218.18, 5,820.03 and 2,449.86
Half scale
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Double scale
Find fourth proportional to 8,437.36, 11,641.44 and 4,900.72
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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.