Home / 12,577.74-18,861.90-3,691.24

Finding the Fourth Proportional to 12,577.74, 18,861.90 and 3,691.24

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Solution

The fourth proportional to 12,577.74, 18,861.90 and 3,691.24 is: 5,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.74 : 18,861.90 = 3,691.24 : x
  2. Step 2: Convert to fraction form
    12,577.74/18,861.90 = 3,691.24/x
  3. Step 3: Cross multiply
    12,577.74x = 18,861.90 × 3,691.24
  4. Step 4: Simplify right side
    12,577.74x = 69,623,799.76
  5. Step 5: Solve for x
    x = 69,623,799.76/12,577.74
  6. Step 6: Final answer
    x = 5,535.48

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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.