Home / 7,507.78-11,250.84-5,517.76

Finding the Fourth Proportional to 7,507.78, 11,250.84 and 5,517.76

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Solution

The fourth proportional to 7,507.78, 11,250.84 and 5,517.76 is: 8,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,507.78 : 11,250.84 = 5,517.76 : x
  2. Step 2: Convert to fraction form
    7,507.78/11,250.84 = 5,517.76/x
  3. Step 3: Cross multiply
    7,507.78x = 11,250.84 × 5,517.76
  4. Step 4: Simplify right side
    7,507.78x = 62,079,434.92
  5. Step 5: Solve for x
    x = 62,079,434.92/7,507.78
  6. Step 6: Final answer
    x = 8,268.68

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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.