Home / 8,112.24-11,174.40-6,793.20

Finding the Fourth Proportional to 8,112.24, 11,174.40 and 6,793.20

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Solution

The fourth proportional to 8,112.24, 11,174.40 and 6,793.20 is: 9,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.24 : 11,174.40 = 6,793.20 : x
  2. Step 2: Convert to fraction form
    8,112.24/11,174.40 = 6,793.20/x
  3. Step 3: Cross multiply
    8,112.24x = 11,174.40 × 6,793.20
  4. Step 4: Simplify right side
    8,112.24x = 75,909,934.08
  5. Step 5: Solve for x
    x = 75,909,934.08/8,112.24
  6. Step 6: Final answer
    x = 9,357.46

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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.