Home / 14,377.38-21,566.07-3,989.13

Finding the Fourth Proportional to 14,377.38, 21,566.07 and 3,989.13

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Solution

The fourth proportional to 14,377.38, 21,566.07 and 3,989.13 is: 5,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,377.38 : 21,566.07 = 3,989.13 : x
  2. Step 2: Convert to fraction form
    14,377.38/21,566.07 = 3,989.13/x
  3. Step 3: Cross multiply
    14,377.38x = 21,566.07 × 3,989.13
  4. Step 4: Simplify right side
    14,377.38x = 86,029,856.82
  5. Step 5: Solve for x
    x = 86,029,856.82/14,377.38
  6. Step 6: Final answer
    x = 5,983.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.