Home / 10,522.88-15,753.60-8,311.04

Finding the Fourth Proportional to 10,522.88, 15,753.60 and 8,311.04

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Solution

The fourth proportional to 10,522.88, 15,753.60 and 8,311.04 is: 12,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.88 : 15,753.60 = 8,311.04 : x
  2. Step 2: Convert to fraction form
    10,522.88/15,753.60 = 8,311.04/x
  3. Step 3: Cross multiply
    10,522.88x = 15,753.60 × 8,311.04
  4. Step 4: Simplify right side
    10,522.88x = 130,928,799.74
  5. Step 5: Solve for x
    x = 130,928,799.74/10,522.88
  6. Step 6: Final answer
    x = 12,442.30

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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.