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Finding the Fourth Proportional to 8,376.52, 12,564.86 and 2,220.52

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Solution

The fourth proportional to 8,376.52, 12,564.86 and 2,220.52 is: 3,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.52 : 12,564.86 = 2,220.52 : x
  2. Step 2: Convert to fraction form
    8,376.52/12,564.86 = 2,220.52/x
  3. Step 3: Cross multiply
    8,376.52x = 12,564.86 × 2,220.52
  4. Step 4: Simplify right side
    8,376.52x = 27,900,522.93
  5. Step 5: Solve for x
    x = 27,900,522.93/8,376.52
  6. Step 6: Final answer
    x = 3,330.80

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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.