Home / 8,112.90-12,150.15-5,501.70

Finding the Fourth Proportional to 8,112.90, 12,150.15 and 5,501.70

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Solution

The fourth proportional to 8,112.90, 12,150.15 and 5,501.70 is: 8,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.90 : 12,150.15 = 5,501.70 : x
  2. Step 2: Convert to fraction form
    8,112.90/12,150.15 = 5,501.70/x
  3. Step 3: Cross multiply
    8,112.90x = 12,150.15 × 5,501.70
  4. Step 4: Simplify right side
    8,112.90x = 66,846,480.26
  5. Step 5: Solve for x
    x = 66,846,480.26/8,112.90
  6. Step 6: Final answer
    x = 8,239.53

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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.