Home / 10,747.32-16,115.80-8,401.38

Finding the Fourth Proportional to 10,747.32, 16,115.80 and 8,401.38

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Solution

The fourth proportional to 10,747.32, 16,115.80 and 8,401.38 is: 12,598.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.32 : 16,115.80 = 8,401.38 : x
  2. Step 2: Convert to fraction form
    10,747.32/16,115.80 = 8,401.38/x
  3. Step 3: Cross multiply
    10,747.32x = 16,115.80 × 8,401.38
  4. Step 4: Simplify right side
    10,747.32x = 135,394,959.80
  5. Step 5: Solve for x
    x = 135,394,959.80/10,747.32
  6. Step 6: Final answer
    x = 12,598.02

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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.