Home / 10,447.55-15,672.69-5,517.38

Finding the Fourth Proportional to 10,447.55, 15,672.69 and 5,517.38

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Solution

The fourth proportional to 10,447.55, 15,672.69 and 5,517.38 is: 8,276.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.55 : 15,672.69 = 5,517.38 : x
  2. Step 2: Convert to fraction form
    10,447.55/15,672.69 = 5,517.38/x
  3. Step 3: Cross multiply
    10,447.55x = 15,672.69 × 5,517.38
  4. Step 4: Simplify right side
    10,447.55x = 86,472,107.99
  5. Step 5: Solve for x
    x = 86,472,107.99/10,447.55
  6. Step 6: Final answer
    x = 8,276.79

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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.