Home / 13,251.15-19,765.09-12,332.61

Finding the Fourth Proportional to 13,251.15, 19,765.09 and 12,332.61

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Solution

The fourth proportional to 13,251.15, 19,765.09 and 12,332.61 is: 18,395.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.15 : 19,765.09 = 12,332.61 : x
  2. Step 2: Convert to fraction form
    13,251.15/19,765.09 = 12,332.61/x
  3. Step 3: Cross multiply
    13,251.15x = 19,765.09 × 12,332.61
  4. Step 4: Simplify right side
    13,251.15x = 243,755,162.00
  5. Step 5: Solve for x
    x = 243,755,162.00/13,251.15
  6. Step 6: Final answer
    x = 18,395.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.