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Finding the Fourth Proportional to 8,883.65, 13,312.52 and 4,989.17

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Solution

The fourth proportional to 8,883.65, 13,312.52 and 4,989.17 is: 7,476.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.65 : 13,312.52 = 4,989.17 : x
  2. Step 2: Convert to fraction form
    8,883.65/13,312.52 = 4,989.17/x
  3. Step 3: Cross multiply
    8,883.65x = 13,312.52 × 4,989.17
  4. Step 4: Simplify right side
    8,883.65x = 66,418,400.46
  5. Step 5: Solve for x
    x = 66,418,400.46/8,883.65
  6. Step 6: Final answer
    x = 7,476.48

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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.