Home / 8,079.32-11,154.42-6,407.48

Finding the Fourth Proportional to 8,079.32, 11,154.42 and 6,407.48

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Solution

The fourth proportional to 8,079.32, 11,154.42 and 6,407.48 is: 8,846.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.32 : 11,154.42 = 6,407.48 : x
  2. Step 2: Convert to fraction form
    8,079.32/11,154.42 = 6,407.48/x
  3. Step 3: Cross multiply
    8,079.32x = 11,154.42 × 6,407.48
  4. Step 4: Simplify right side
    8,079.32x = 71,471,723.06
  5. Step 5: Solve for x
    x = 71,471,723.06/8,079.32
  6. Step 6: Final answer
    x = 8,846.25

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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.