Home / 15,419.52-23,142.24-12,360.96

Finding the Fourth Proportional to 15,419.52, 23,142.24 and 12,360.96

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Solution

The fourth proportional to 15,419.52, 23,142.24 and 12,360.96 is: 18,551.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.52 : 23,142.24 = 12,360.96 : x
  2. Step 2: Convert to fraction form
    15,419.52/23,142.24 = 12,360.96/x
  3. Step 3: Cross multiply
    15,419.52x = 23,142.24 × 12,360.96
  4. Step 4: Simplify right side
    15,419.52x = 286,060,302.95
  5. Step 5: Solve for x
    x = 286,060,302.95/15,419.52
  6. Step 6: Final answer
    x = 18,551.83

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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.