Home / 8,040.90-12,072.15-5,132.10

Finding the Fourth Proportional to 8,040.90, 12,072.15 and 5,132.10

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Solution

The fourth proportional to 8,040.90, 12,072.15 and 5,132.10 is: 7,705.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.90 : 12,072.15 = 5,132.10 : x
  2. Step 2: Convert to fraction form
    8,040.90/12,072.15 = 5,132.10/x
  3. Step 3: Cross multiply
    8,040.90x = 12,072.15 × 5,132.10
  4. Step 4: Simplify right side
    8,040.90x = 61,955,481.02
  5. Step 5: Solve for x
    x = 61,955,481.02/8,040.90
  6. Step 6: Final answer
    x = 7,705.04

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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.