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Finding the Fourth Proportional to 8,797.11, 12,139.38 and 4,817.58

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Solution

The fourth proportional to 8,797.11, 12,139.38 and 4,817.58 is: 6,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.11 : 12,139.38 = 4,817.58 : x
  2. Step 2: Convert to fraction form
    8,797.11/12,139.38 = 4,817.58/x
  3. Step 3: Cross multiply
    8,797.11x = 12,139.38 × 4,817.58
  4. Step 4: Simplify right side
    8,797.11x = 58,482,434.30
  5. Step 5: Solve for x
    x = 58,482,434.30/8,797.11
  6. Step 6: Final answer
    x = 6,647.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.