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Finding the Fourth Proportional to 8,981.66, 13,479.50 and 6,227.72

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Solution

The fourth proportional to 8,981.66, 13,479.50 and 6,227.72 is: 9,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.66 : 13,479.50 = 6,227.72 : x
  2. Step 2: Convert to fraction form
    8,981.66/13,479.50 = 6,227.72/x
  3. Step 3: Cross multiply
    8,981.66x = 13,479.50 × 6,227.72
  4. Step 4: Simplify right side
    8,981.66x = 83,946,551.74
  5. Step 5: Solve for x
    x = 83,946,551.74/8,981.66
  6. Step 6: Final answer
    x = 9,346.44

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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.