Home / 8,717.28-13,072.45-3,167.61

Finding the Fourth Proportional to 8,717.28, 13,072.45 and 3,167.61

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Solution

The fourth proportional to 8,717.28, 13,072.45 and 3,167.61 is: 4,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.28 : 13,072.45 = 3,167.61 : x
  2. Step 2: Convert to fraction form
    8,717.28/13,072.45 = 3,167.61/x
  3. Step 3: Cross multiply
    8,717.28x = 13,072.45 × 3,167.61
  4. Step 4: Simplify right side
    8,717.28x = 41,408,423.34
  5. Step 5: Solve for x
    x = 41,408,423.34/8,717.28
  6. Step 6: Final answer
    x = 4,750.15

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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.