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Finding the Fourth Proportional to 12,760.62, 19,132.62 and 4,440

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Solution

The fourth proportional to 12,760.62, 19,132.62 and 4,440 is: 6,657.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.62 : 19,132.62 = 4,440 : x
  2. Step 2: Convert to fraction form
    12,760.62/19,132.62 = 4,440/x
  3. Step 3: Cross multiply
    12,760.62x = 19,132.62 × 4,440
  4. Step 4: Simplify right side
    12,760.62x = 84,948,832.80
  5. Step 5: Solve for x
    x = 84,948,832.80/12,760.62
  6. Step 6: Final answer
    x = 6,657.11

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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.