Home / 8,577.13-12,869.52-5,456.30

Finding the Fourth Proportional to 8,577.13, 12,869.52 and 5,456.30

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Solution

The fourth proportional to 8,577.13, 12,869.52 and 5,456.30 is: 8,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.13 : 12,869.52 = 5,456.30 : x
  2. Step 2: Convert to fraction form
    8,577.13/12,869.52 = 5,456.30/x
  3. Step 3: Cross multiply
    8,577.13x = 12,869.52 × 5,456.30
  4. Step 4: Simplify right side
    8,577.13x = 70,219,961.98
  5. Step 5: Solve for x
    x = 70,219,961.98/8,577.13
  6. Step 6: Final answer
    x = 8,186.88

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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.