Home / 12,250.61-18,366.20-5,320.25

Finding the Fourth Proportional to 12,250.61, 18,366.20 and 5,320.25

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Solution

The fourth proportional to 12,250.61, 18,366.20 and 5,320.25 is: 7,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.61 : 18,366.20 = 5,320.25 : x
  2. Step 2: Convert to fraction form
    12,250.61/18,366.20 = 5,320.25/x
  3. Step 3: Cross multiply
    12,250.61x = 18,366.20 × 5,320.25
  4. Step 4: Simplify right side
    12,250.61x = 97,712,748.95
  5. Step 5: Solve for x
    x = 97,712,748.95/12,250.61
  6. Step 6: Final answer
    x = 7,976.15

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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.