Home / 12,585.24-18,878.28-5,659.76

Finding the Fourth Proportional to 12,585.24, 18,878.28 and 5,659.76

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Solution

The fourth proportional to 12,585.24, 18,878.28 and 5,659.76 is: 8,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.24 : 18,878.28 = 5,659.76 : x
  2. Step 2: Convert to fraction form
    12,585.24/18,878.28 = 5,659.76/x
  3. Step 3: Cross multiply
    12,585.24x = 18,878.28 × 5,659.76
  4. Step 4: Simplify right side
    12,585.24x = 106,846,534.01
  5. Step 5: Solve for x
    x = 106,846,534.01/12,585.24
  6. Step 6: Final answer
    x = 8,489.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.