Home / 10,522.43-15,788.28-8,178.93

Finding the Fourth Proportional to 10,522.43, 15,788.28 and 8,178.93

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Solution

The fourth proportional to 10,522.43, 15,788.28 and 8,178.93 is: 12,272.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.43 : 15,788.28 = 8,178.93 : x
  2. Step 2: Convert to fraction form
    10,522.43/15,788.28 = 8,178.93/x
  3. Step 3: Cross multiply
    10,522.43x = 15,788.28 × 8,178.93
  4. Step 4: Simplify right side
    10,522.43x = 129,131,236.94
  5. Step 5: Solve for x
    x = 129,131,236.94/10,522.43
  6. Step 6: Final answer
    x = 12,272.00

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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.