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Finding the Fourth Proportional to 8,381.36, 12,572.04 and 2,538

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Solution

The fourth proportional to 8,381.36, 12,572.04 and 2,538 is: 3,807

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.36 : 12,572.04 = 2,538 : x
  2. Step 2: Convert to fraction form
    8,381.36/12,572.04 = 2,538/x
  3. Step 3: Cross multiply
    8,381.36x = 12,572.04 × 2,538
  4. Step 4: Simplify right side
    8,381.36x = 31,907,837.52
  5. Step 5: Solve for x
    x = 31,907,837.52/8,381.36
  6. Step 6: Final answer
    x = 3,807

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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.