Home / 10,257.71-15,414.36-5,581.18

Finding the Fourth Proportional to 10,257.71, 15,414.36 and 5,581.18

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Solution

The fourth proportional to 10,257.71, 15,414.36 and 5,581.18 is: 8,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.71 : 15,414.36 = 5,581.18 : x
  2. Step 2: Convert to fraction form
    10,257.71/15,414.36 = 5,581.18/x
  3. Step 3: Cross multiply
    10,257.71x = 15,414.36 × 5,581.18
  4. Step 4: Simplify right side
    10,257.71x = 86,030,279.21
  5. Step 5: Solve for x
    x = 86,030,279.21/10,257.71
  6. Step 6: Final answer
    x = 8,386.89

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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.