Home / 13,381.20-18,467.19-7,414.74

Finding the Fourth Proportional to 13,381.20, 18,467.19 and 7,414.74

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Solution

The fourth proportional to 13,381.20, 18,467.19 and 7,414.74 is: 10,232.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.20 : 18,467.19 = 7,414.74 : x
  2. Step 2: Convert to fraction form
    13,381.20/18,467.19 = 7,414.74/x
  3. Step 3: Cross multiply
    13,381.20x = 18,467.19 × 7,414.74
  4. Step 4: Simplify right side
    13,381.20x = 136,929,412.38
  5. Step 5: Solve for x
    x = 136,929,412.38/13,381.20
  6. Step 6: Final answer
    x = 10,232.97

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Double scale
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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.