Home / 8,149.77-11,247.12-5,164.52

Finding the Fourth Proportional to 8,149.77, 11,247.12 and 5,164.52

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Solution

The fourth proportional to 8,149.77, 11,247.12 and 5,164.52 is: 7,127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.77 : 11,247.12 = 5,164.52 : x
  2. Step 2: Convert to fraction form
    8,149.77/11,247.12 = 5,164.52/x
  3. Step 3: Cross multiply
    8,149.77x = 11,247.12 × 5,164.52
  4. Step 4: Simplify right side
    8,149.77x = 58,085,919.95
  5. Step 5: Solve for x
    x = 58,085,919.95/8,149.77
  6. Step 6: Final answer
    x = 7,127.31

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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.