Home / 12,251.18-18,386.02-8,972.78

Finding the Fourth Proportional to 12,251.18, 18,386.02 and 8,972.78

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Solution

The fourth proportional to 12,251.18, 18,386.02 and 8,972.78 is: 13,465.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.18 : 18,386.02 = 8,972.78 : x
  2. Step 2: Convert to fraction form
    12,251.18/18,386.02 = 8,972.78/x
  3. Step 3: Cross multiply
    12,251.18x = 18,386.02 × 8,972.78
  4. Step 4: Simplify right side
    12,251.18x = 164,973,620.61
  5. Step 5: Solve for x
    x = 164,973,620.61/12,251.18
  6. Step 6: Final answer
    x = 13,465.94

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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.