Home / 15,418.45-23,134.72-8,387.93

Finding the Fourth Proportional to 15,418.45, 23,134.72 and 8,387.93

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Solution

The fourth proportional to 15,418.45, 23,134.72 and 8,387.93 is: 12,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.45 : 23,134.72 = 8,387.93 : x
  2. Step 2: Convert to fraction form
    15,418.45/23,134.72 = 8,387.93/x
  3. Step 3: Cross multiply
    15,418.45x = 23,134.72 × 8,387.93
  4. Step 4: Simplify right side
    15,418.45x = 194,052,306.74
  5. Step 5: Solve for x
    x = 194,052,306.74/15,418.45
  6. Step 6: Final answer
    x = 12,585.72

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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.