Home / 10,522.20-15,744.36-8,655.96

Finding the Fourth Proportional to 10,522.20, 15,744.36 and 8,655.96

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Solution

The fourth proportional to 10,522.20, 15,744.36 and 8,655.96 is: 12,951.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.20 : 15,744.36 = 8,655.96 : x
  2. Step 2: Convert to fraction form
    10,522.20/15,744.36 = 8,655.96/x
  3. Step 3: Cross multiply
    10,522.20x = 15,744.36 × 8,655.96
  4. Step 4: Simplify right side
    10,522.20x = 136,282,550.39
  5. Step 5: Solve for x
    x = 136,282,550.39/10,522.20
  6. Step 6: Final answer
    x = 12,951.91

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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.