Home / 11,249.43-15,520.45-7,275.57

Finding the Fourth Proportional to 11,249.43, 15,520.45 and 7,275.57

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Solution

The fourth proportional to 11,249.43, 15,520.45 and 7,275.57 is: 10,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.43 : 15,520.45 = 7,275.57 : x
  2. Step 2: Convert to fraction form
    11,249.43/15,520.45 = 7,275.57/x
  3. Step 3: Cross multiply
    11,249.43x = 15,520.45 × 7,275.57
  4. Step 4: Simplify right side
    11,249.43x = 112,920,120.41
  5. Step 5: Solve for x
    x = 112,920,120.41/11,249.43
  6. Step 6: Final answer
    x = 10,037.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.