Home / 8,113.32-11,196.38-4,387.32

Finding the Fourth Proportional to 8,113.32, 11,196.38 and 4,387.32

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Solution

The fourth proportional to 8,113.32, 11,196.38 and 4,387.32 is: 6,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.32 : 11,196.38 = 4,387.32 : x
  2. Step 2: Convert to fraction form
    8,113.32/11,196.38 = 4,387.32/x
  3. Step 3: Cross multiply
    8,113.32x = 11,196.38 × 4,387.32
  4. Step 4: Simplify right side
    8,113.32x = 49,122,079.97
  5. Step 5: Solve for x
    x = 49,122,079.97/8,113.32
  6. Step 6: Final answer
    x = 6,054.50

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Half scale
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Double scale
Find fourth proportional to 8,114.32, 11,197.75 and 4,388.32
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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.