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Finding the Fourth Proportional to 8,316.90, 12,469.11 and 5,029.32

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Solution

The fourth proportional to 8,316.90, 12,469.11 and 5,029.32 is: 7,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.90 : 12,469.11 = 5,029.32 : x
  2. Step 2: Convert to fraction form
    8,316.90/12,469.11 = 5,029.32/x
  3. Step 3: Cross multiply
    8,316.90x = 12,469.11 × 5,029.32
  4. Step 4: Simplify right side
    8,316.90x = 62,711,144.31
  5. Step 5: Solve for x
    x = 62,711,144.31/8,316.90
  6. Step 6: Final answer
    x = 7,540.21

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1.5x scale

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.