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Finding the Fourth Proportional to 8,818.70, 13,227.78 and 2,974.82

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Solution

The fourth proportional to 8,818.70, 13,227.78 and 2,974.82 is: 4,462.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.70 : 13,227.78 = 2,974.82 : x
  2. Step 2: Convert to fraction form
    8,818.70/13,227.78 = 2,974.82/x
  3. Step 3: Cross multiply
    8,818.70x = 13,227.78 × 2,974.82
  4. Step 4: Simplify right side
    8,818.70x = 39,350,264.50
  5. Step 5: Solve for x
    x = 39,350,264.50/8,818.70
  6. Step 6: Final answer
    x = 4,462.14

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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.