Home / 8,439.44-11,641.56-5,079.92

Finding the Fourth Proportional to 8,439.44, 11,641.56 and 5,079.92

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Solution

The fourth proportional to 8,439.44, 11,641.56 and 5,079.92 is: 7,007.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.44 : 11,641.56 = 5,079.92 : x
  2. Step 2: Convert to fraction form
    8,439.44/11,641.56 = 5,079.92/x
  3. Step 3: Cross multiply
    8,439.44x = 11,641.56 × 5,079.92
  4. Step 4: Simplify right side
    8,439.44x = 59,138,193.48
  5. Step 5: Solve for x
    x = 59,138,193.48/8,439.44
  6. Step 6: Final answer
    x = 7,007.36

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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.