Home / 12,588.12-18,882.18-5,654.52

Finding the Fourth Proportional to 12,588.12, 18,882.18 and 5,654.52

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Solution

The fourth proportional to 12,588.12, 18,882.18 and 5,654.52 is: 8,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.12 : 18,882.18 = 5,654.52 : x
  2. Step 2: Convert to fraction form
    12,588.12/18,882.18 = 5,654.52/x
  3. Step 3: Cross multiply
    12,588.12x = 18,882.18 × 5,654.52
  4. Step 4: Simplify right side
    12,588.12x = 106,769,664.45
  5. Step 5: Solve for x
    x = 106,769,664.45/12,588.12
  6. Step 6: Final answer
    x = 8,481.78

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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.