Home / 8,081.76-11,149.20-4,937.36

Finding the Fourth Proportional to 8,081.76, 11,149.20 and 4,937.36

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Solution

The fourth proportional to 8,081.76, 11,149.20 and 4,937.36 is: 6,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.76 : 11,149.20 = 4,937.36 : x
  2. Step 2: Convert to fraction form
    8,081.76/11,149.20 = 4,937.36/x
  3. Step 3: Cross multiply
    8,081.76x = 11,149.20 × 4,937.36
  4. Step 4: Simplify right side
    8,081.76x = 55,047,614.11
  5. Step 5: Solve for x
    x = 55,047,614.11/8,081.76
  6. Step 6: Final answer
    x = 6,811.34

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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.