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Finding the Fourth Proportional to 12,260.76, 18,391.18 and 3,026.76

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Solution

The fourth proportional to 12,260.76, 18,391.18 and 3,026.76 is: 4,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.76 : 18,391.18 = 3,026.76 : x
  2. Step 2: Convert to fraction form
    12,260.76/18,391.18 = 3,026.76/x
  3. Step 3: Cross multiply
    12,260.76x = 18,391.18 × 3,026.76
  4. Step 4: Simplify right side
    12,260.76x = 55,665,687.98
  5. Step 5: Solve for x
    x = 55,665,687.98/12,260.76
  6. Step 6: Final answer
    x = 4,540.15

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1.5x scale

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.