Home / 8,122.08-11,150.52-7,331.52

Finding the Fourth Proportional to 8,122.08, 11,150.52 and 7,331.52

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Solution

The fourth proportional to 8,122.08, 11,150.52 and 7,331.52 is: 10,065.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.08 : 11,150.52 = 7,331.52 : x
  2. Step 2: Convert to fraction form
    8,122.08/11,150.52 = 7,331.52/x
  3. Step 3: Cross multiply
    8,122.08x = 11,150.52 × 7,331.52
  4. Step 4: Simplify right side
    8,122.08x = 81,750,260.39
  5. Step 5: Solve for x
    x = 81,750,260.39/8,122.08
  6. Step 6: Final answer
    x = 10,065.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.