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Finding the Fourth Proportional to 8,373.90, 12,554.64 and 3,445.86

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Solution

The fourth proportional to 8,373.90, 12,554.64 and 3,445.86 is: 5,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,373.90 : 12,554.64 = 3,445.86 : x
  2. Step 2: Convert to fraction form
    8,373.90/12,554.64 = 3,445.86/x
  3. Step 3: Cross multiply
    8,373.90x = 12,554.64 × 3,445.86
  4. Step 4: Simplify right side
    8,373.90x = 43,261,531.79
  5. Step 5: Solve for x
    x = 43,261,531.79/8,373.90
  6. Step 6: Final answer
    x = 5,166.23

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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.