Home / 12,725.15-17,542.14-8,936.96

Finding the Fourth Proportional to 12,725.15, 17,542.14 and 8,936.96

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Solution

The fourth proportional to 12,725.15, 17,542.14 and 8,936.96 is: 12,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.15 : 17,542.14 = 8,936.96 : x
  2. Step 2: Convert to fraction form
    12,725.15/17,542.14 = 8,936.96/x
  3. Step 3: Cross multiply
    12,725.15x = 17,542.14 × 8,936.96
  4. Step 4: Simplify right side
    12,725.15x = 156,773,403.49
  5. Step 5: Solve for x
    x = 156,773,403.49/12,725.15
  6. Step 6: Final answer
    x = 12,319.97

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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.