Home / 10,279.92-15,422.40-3,354.24

Finding the Fourth Proportional to 10,279.92, 15,422.40 and 3,354.24

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Solution

The fourth proportional to 10,279.92, 15,422.40 and 3,354.24 is: 5,032.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.92 : 15,422.40 = 3,354.24 : x
  2. Step 2: Convert to fraction form
    10,279.92/15,422.40 = 3,354.24/x
  3. Step 3: Cross multiply
    10,279.92x = 15,422.40 × 3,354.24
  4. Step 4: Simplify right side
    10,279.92x = 51,730,430.98
  5. Step 5: Solve for x
    x = 51,730,430.98/10,279.92
  6. Step 6: Final answer
    x = 5,032.18

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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.