Home / 10,108.62-15,134.94-5,167.62

Finding the Fourth Proportional to 10,108.62, 15,134.94 and 5,167.62

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Solution

The fourth proportional to 10,108.62, 15,134.94 and 5,167.62 is: 7,737.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.62 : 15,134.94 = 5,167.62 : x
  2. Step 2: Convert to fraction form
    10,108.62/15,134.94 = 5,167.62/x
  3. Step 3: Cross multiply
    10,108.62x = 15,134.94 × 5,167.62
  4. Step 4: Simplify right side
    10,108.62x = 78,211,618.64
  5. Step 5: Solve for x
    x = 78,211,618.64/10,108.62
  6. Step 6: Final answer
    x = 7,737.12

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1.5x scale

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.