Home / 10,113.52-15,167.85-5,180.62

Finding the Fourth Proportional to 10,113.52, 15,167.85 and 5,180.62

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Solution

The fourth proportional to 10,113.52, 15,167.85 and 5,180.62 is: 7,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.52 : 15,167.85 = 5,180.62 : x
  2. Step 2: Convert to fraction form
    10,113.52/15,167.85 = 5,180.62/x
  3. Step 3: Cross multiply
    10,113.52x = 15,167.85 × 5,180.62
  4. Step 4: Simplify right side
    10,113.52x = 78,578,867.07
  5. Step 5: Solve for x
    x = 78,578,867.07/10,113.52
  6. Step 6: Final answer
    x = 7,769.69

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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.