Home / 8,742.52-13,108.92-3,542.32

Finding the Fourth Proportional to 8,742.52, 13,108.92 and 3,542.32

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Solution

The fourth proportional to 8,742.52, 13,108.92 and 3,542.32 is: 5,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.52 : 13,108.92 = 3,542.32 : x
  2. Step 2: Convert to fraction form
    8,742.52/13,108.92 = 3,542.32/x
  3. Step 3: Cross multiply
    8,742.52x = 13,108.92 × 3,542.32
  4. Step 4: Simplify right side
    8,742.52x = 46,435,989.49
  5. Step 5: Solve for x
    x = 46,435,989.49/8,742.52
  6. Step 6: Final answer
    x = 5,311.51

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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.