Home / 8,753.30-13,139.55-4,855.70

Finding the Fourth Proportional to 8,753.30, 13,139.55 and 4,855.70

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Solution

The fourth proportional to 8,753.30, 13,139.55 and 4,855.70 is: 7,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.30 : 13,139.55 = 4,855.70 : x
  2. Step 2: Convert to fraction form
    8,753.30/13,139.55 = 4,855.70/x
  3. Step 3: Cross multiply
    8,753.30x = 13,139.55 × 4,855.70
  4. Step 4: Simplify right side
    8,753.30x = 63,801,712.94
  5. Step 5: Solve for x
    x = 63,801,712.94/8,753.30
  6. Step 6: Final answer
    x = 7,288.88

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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.