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Finding the Fourth Proportional to 8,689.41, 13,026.04 and 4,734.88

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Solution

The fourth proportional to 8,689.41, 13,026.04 and 4,734.88 is: 7,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.41 : 13,026.04 = 4,734.88 : x
  2. Step 2: Convert to fraction form
    8,689.41/13,026.04 = 4,734.88/x
  3. Step 3: Cross multiply
    8,689.41x = 13,026.04 × 4,734.88
  4. Step 4: Simplify right side
    8,689.41x = 61,676,691.87
  5. Step 5: Solve for x
    x = 61,676,691.87/8,689.41
  6. Step 6: Final answer
    x = 7,097.91

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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.