Home / 15,801.17-21,805.23-9,086.64

Finding the Fourth Proportional to 15,801.17, 21,805.23 and 9,086.64

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Solution

The fourth proportional to 15,801.17, 21,805.23 and 9,086.64 is: 12,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,801.17 : 21,805.23 = 9,086.64 : x
  2. Step 2: Convert to fraction form
    15,801.17/21,805.23 = 9,086.64/x
  3. Step 3: Cross multiply
    15,801.17x = 21,805.23 × 9,086.64
  4. Step 4: Simplify right side
    15,801.17x = 198,136,275.13
  5. Step 5: Solve for x
    x = 198,136,275.13/15,801.17
  6. Step 6: Final answer
    x = 12,539.34

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Half scale
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Double scale
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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.