Home / 8,716.27-12,029.47-5,179.48

Finding the Fourth Proportional to 8,716.27, 12,029.47 and 5,179.48

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Solution

The fourth proportional to 8,716.27, 12,029.47 and 5,179.48 is: 7,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.27 : 12,029.47 = 5,179.48 : x
  2. Step 2: Convert to fraction form
    8,716.27/12,029.47 = 5,179.48/x
  3. Step 3: Cross multiply
    8,716.27x = 12,029.47 × 5,179.48
  4. Step 4: Simplify right side
    8,716.27x = 62,306,356.25
  5. Step 5: Solve for x
    x = 62,306,356.25/8,716.27
  6. Step 6: Final answer
    x = 7,148.28

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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.