Home / 10,572.12-15,861.30-3,177.72

Finding the Fourth Proportional to 10,572.12, 15,861.30 and 3,177.72

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Solution

The fourth proportional to 10,572.12, 15,861.30 and 3,177.72 is: 4,767.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.12 : 15,861.30 = 3,177.72 : x
  2. Step 2: Convert to fraction form
    10,572.12/15,861.30 = 3,177.72/x
  3. Step 3: Cross multiply
    10,572.12x = 15,861.30 × 3,177.72
  4. Step 4: Simplify right side
    10,572.12x = 50,402,770.24
  5. Step 5: Solve for x
    x = 50,402,770.24/10,572.12
  6. Step 6: Final answer
    x = 4,767.52

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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.