Home / 10,117.16-15,176.96-3,454.78

Finding the Fourth Proportional to 10,117.16, 15,176.96 and 3,454.78

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Solution

The fourth proportional to 10,117.16, 15,176.96 and 3,454.78 is: 5,182.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.16 : 15,176.96 = 3,454.78 : x
  2. Step 2: Convert to fraction form
    10,117.16/15,176.96 = 3,454.78/x
  3. Step 3: Cross multiply
    10,117.16x = 15,176.96 × 3,454.78
  4. Step 4: Simplify right side
    10,117.16x = 52,433,057.87
  5. Step 5: Solve for x
    x = 52,433,057.87/10,117.16
  6. Step 6: Final answer
    x = 5,182.59

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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.