Home / 12,558.90-17,331.15-7,253.61

Finding the Fourth Proportional to 12,558.90, 17,331.15 and 7,253.61

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Solution

The fourth proportional to 12,558.90, 17,331.15 and 7,253.61 is: 10,009.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.90 : 17,331.15 = 7,253.61 : x
  2. Step 2: Convert to fraction form
    12,558.90/17,331.15 = 7,253.61/x
  3. Step 3: Cross multiply
    12,558.90x = 17,331.15 × 7,253.61
  4. Step 4: Simplify right side
    12,558.90x = 125,713,402.95
  5. Step 5: Solve for x
    x = 125,713,402.95/12,558.90
  6. Step 6: Final answer
    x = 10,009.91

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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.