Home / 10,288.10-15,432.15-2,892.80

Finding the Fourth Proportional to 10,288.10, 15,432.15 and 2,892.80

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Solution

The fourth proportional to 10,288.10, 15,432.15 and 2,892.80 is: 4,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.10 : 15,432.15 = 2,892.80 : x
  2. Step 2: Convert to fraction form
    10,288.10/15,432.15 = 2,892.80/x
  3. Step 3: Cross multiply
    10,288.10x = 15,432.15 × 2,892.80
  4. Step 4: Simplify right side
    10,288.10x = 44,642,123.52
  5. Step 5: Solve for x
    x = 44,642,123.52/10,288.10
  6. Step 6: Final answer
    x = 4,339.20

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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.