Home / 10,280.10-15,432.30-10,207.20

Finding the Fourth Proportional to 10,280.10, 15,432.30 and 10,207.20

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Solution

The fourth proportional to 10,280.10, 15,432.30 and 10,207.20 is: 15,322.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.10 : 15,432.30 = 10,207.20 : x
  2. Step 2: Convert to fraction form
    10,280.10/15,432.30 = 10,207.20/x
  3. Step 3: Cross multiply
    10,280.10x = 15,432.30 × 10,207.20
  4. Step 4: Simplify right side
    10,280.10x = 157,520,572.56
  5. Step 5: Solve for x
    x = 157,520,572.56/10,280.10
  6. Step 6: Final answer
    x = 15,322.86

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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.