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Finding the Fourth Proportional to 8,644.20, 12,966.30 and 6,019.80

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Solution

The fourth proportional to 8,644.20, 12,966.30 and 6,019.80 is: 9,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.20 : 12,966.30 = 6,019.80 : x
  2. Step 2: Convert to fraction form
    8,644.20/12,966.30 = 6,019.80/x
  3. Step 3: Cross multiply
    8,644.20x = 12,966.30 × 6,019.80
  4. Step 4: Simplify right side
    8,644.20x = 78,054,532.74
  5. Step 5: Solve for x
    x = 78,054,532.74/8,644.20
  6. Step 6: Final answer
    x = 9,029.70

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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.