Home / 15,665.92-21,598.98-11,423.14

Finding the Fourth Proportional to 15,665.92, 21,598.98 and 11,423.14

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Solution

The fourth proportional to 15,665.92, 21,598.98 and 11,423.14 is: 15,749.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665.92 : 21,598.98 = 11,423.14 : x
  2. Step 2: Convert to fraction form
    15,665.92/21,598.98 = 11,423.14/x
  3. Step 3: Cross multiply
    15,665.92x = 21,598.98 × 11,423.14
  4. Step 4: Simplify right side
    15,665.92x = 246,728,172.40
  5. Step 5: Solve for x
    x = 246,728,172.40/15,665.92
  6. Step 6: Final answer
    x = 15,749.36

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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.