Home / 13,373.96-20,049.65-8,432.72

Finding the Fourth Proportional to 13,373.96, 20,049.65 and 8,432.72

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Solution

The fourth proportional to 13,373.96, 20,049.65 and 8,432.72 is: 12,641.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.96 : 20,049.65 = 8,432.72 : x
  2. Step 2: Convert to fraction form
    13,373.96/20,049.65 = 8,432.72/x
  3. Step 3: Cross multiply
    13,373.96x = 20,049.65 × 8,432.72
  4. Step 4: Simplify right side
    13,373.96x = 169,072,942.14
  5. Step 5: Solve for x
    x = 169,072,942.14/13,373.96
  6. Step 6: Final answer
    x = 12,641.95

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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.