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Finding the Fourth Proportional to 8,887.66, 13,322 and 6,689.58

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Solution

The fourth proportional to 8,887.66, 13,322 and 6,689.58 is: 10,027.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.66 : 13,322 = 6,689.58 : x
  2. Step 2: Convert to fraction form
    8,887.66/13,322 = 6,689.58/x
  3. Step 3: Cross multiply
    8,887.66x = 13,322 × 6,689.58
  4. Step 4: Simplify right side
    8,887.66x = 89,118,584.76
  5. Step 5: Solve for x
    x = 89,118,584.76/8,887.66
  6. Step 6: Final answer
    x = 10,027.23

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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.