Home / 10,114.97-15,161.49-5,177.84

Finding the Fourth Proportional to 10,114.97, 15,161.49 and 5,177.84

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Solution

The fourth proportional to 10,114.97, 15,161.49 and 5,177.84 is: 7,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114.97 : 15,161.49 = 5,177.84 : x
  2. Step 2: Convert to fraction form
    10,114.97/15,161.49 = 5,177.84/x
  3. Step 3: Cross multiply
    10,114.97x = 15,161.49 × 5,177.84
  4. Step 4: Simplify right side
    10,114.97x = 78,503,693.57
  5. Step 5: Solve for x
    x = 78,503,693.57/10,114.97
  6. Step 6: Final answer
    x = 7,761.14

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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.