Home / 7,542.72-11,314.49-3,155.76

Finding the Fourth Proportional to 7,542.72, 11,314.49 and 3,155.76

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Solution

The fourth proportional to 7,542.72, 11,314.49 and 3,155.76 is: 4,733.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,542.72 : 11,314.49 = 3,155.76 : x
  2. Step 2: Convert to fraction form
    7,542.72/11,314.49 = 3,155.76/x
  3. Step 3: Cross multiply
    7,542.72x = 11,314.49 × 3,155.76
  4. Step 4: Simplify right side
    7,542.72x = 35,705,799.18
  5. Step 5: Solve for x
    x = 35,705,799.18/7,542.72
  6. Step 6: Final answer
    x = 4,733.81

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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.