Home / 15,899.49-21,941.38-9,934.62

Finding the Fourth Proportional to 15,899.49, 21,941.38 and 9,934.62

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Solution

The fourth proportional to 15,899.49, 21,941.38 and 9,934.62 is: 13,709.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,899.49 : 21,941.38 = 9,934.62 : x
  2. Step 2: Convert to fraction form
    15,899.49/21,941.38 = 9,934.62/x
  3. Step 3: Cross multiply
    15,899.49x = 21,941.38 × 9,934.62
  4. Step 4: Simplify right side
    15,899.49x = 217,979,272.58
  5. Step 5: Solve for x
    x = 217,979,272.58/15,899.49
  6. Step 6: Final answer
    x = 13,709.83

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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.