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Finding the Fourth Proportional to 8,488.89, 12,734.73 and 2,644.32

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Solution

The fourth proportional to 8,488.89, 12,734.73 and 2,644.32 is: 3,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.89 : 12,734.73 = 2,644.32 : x
  2. Step 2: Convert to fraction form
    8,488.89/12,734.73 = 2,644.32/x
  3. Step 3: Cross multiply
    8,488.89x = 12,734.73 × 2,644.32
  4. Step 4: Simplify right side
    8,488.89x = 33,674,701.23
  5. Step 5: Solve for x
    x = 33,674,701.23/8,488.89
  6. Step 6: Final answer
    x = 3,966.91

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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.