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Finding the Fourth Proportional to 8,417.73, 12,615.48 and 3,480.57

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Solution

The fourth proportional to 8,417.73, 12,615.48 and 3,480.57 is: 5,216.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.73 : 12,615.48 = 3,480.57 : x
  2. Step 2: Convert to fraction form
    8,417.73/12,615.48 = 3,480.57/x
  3. Step 3: Cross multiply
    8,417.73x = 12,615.48 × 3,480.57
  4. Step 4: Simplify right side
    8,417.73x = 43,909,061.22
  5. Step 5: Solve for x
    x = 43,909,061.22/8,417.73
  6. Step 6: Final answer
    x = 5,216.26

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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.