Home / 8,135.68-11,229.36-5,152.96

Finding the Fourth Proportional to 8,135.68, 11,229.36 and 5,152.96

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Solution

The fourth proportional to 8,135.68, 11,229.36 and 5,152.96 is: 7,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.68 : 11,229.36 = 5,152.96 : x
  2. Step 2: Convert to fraction form
    8,135.68/11,229.36 = 5,152.96/x
  3. Step 3: Cross multiply
    8,135.68x = 11,229.36 × 5,152.96
  4. Step 4: Simplify right side
    8,135.68x = 57,864,442.91
  5. Step 5: Solve for x
    x = 57,864,442.91/8,135.68
  6. Step 6: Final answer
    x = 7,112.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.