Home / 8,481-12,721.52-2,637.62

Finding the Fourth Proportional to 8,481, 12,721.52 and 2,637.62

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Solution

The fourth proportional to 8,481, 12,721.52 and 2,637.62 is: 3,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481 : 12,721.52 = 2,637.62 : x
  2. Step 2: Convert to fraction form
    8,481/12,721.52 = 2,637.62/x
  3. Step 3: Cross multiply
    8,481x = 12,721.52 × 2,637.62
  4. Step 4: Simplify right side
    8,481x = 33,554,478.57
  5. Step 5: Solve for x
    x = 33,554,478.57/8,481
  6. Step 6: Final answer
    x = 3,956.43

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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.