Home / 12,587.85-17,372.14-7,551.95

Finding the Fourth Proportional to 12,587.85, 17,372.14 and 7,551.95

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Solution

The fourth proportional to 12,587.85, 17,372.14 and 7,551.95 is: 10,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.85 : 17,372.14 = 7,551.95 : x
  2. Step 2: Convert to fraction form
    12,587.85/17,372.14 = 7,551.95/x
  3. Step 3: Cross multiply
    12,587.85x = 17,372.14 × 7,551.95
  4. Step 4: Simplify right side
    12,587.85x = 131,193,426.93
  5. Step 5: Solve for x
    x = 131,193,426.93/12,587.85
  6. Step 6: Final answer
    x = 10,422.23

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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.