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Finding the Fourth Proportional to 8,291.82, 12,437.64 and 3,360.12

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Solution

The fourth proportional to 8,291.82, 12,437.64 and 3,360.12 is: 5,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.82 : 12,437.64 = 3,360.12 : x
  2. Step 2: Convert to fraction form
    8,291.82/12,437.64 = 3,360.12/x
  3. Step 3: Cross multiply
    8,291.82x = 12,437.64 × 3,360.12
  4. Step 4: Simplify right side
    8,291.82x = 41,791,962.92
  5. Step 5: Solve for x
    x = 41,791,962.92/8,291.82
  6. Step 6: Final answer
    x = 5,040.14

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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.