Home / 12,423.17-17,143.84-9,250.66

Finding the Fourth Proportional to 12,423.17, 17,143.84 and 9,250.66

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Solution

The fourth proportional to 12,423.17, 17,143.84 and 9,250.66 is: 12,765.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.17 : 17,143.84 = 9,250.66 : x
  2. Step 2: Convert to fraction form
    12,423.17/17,143.84 = 9,250.66/x
  3. Step 3: Cross multiply
    12,423.17x = 17,143.84 × 9,250.66
  4. Step 4: Simplify right side
    12,423.17x = 158,591,768.95
  5. Step 5: Solve for x
    x = 158,591,768.95/12,423.17
  6. Step 6: Final answer
    x = 12,765.80

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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.