Home / 8,127.77-11,216.19-4,542.78

Finding the Fourth Proportional to 8,127.77, 11,216.19 and 4,542.78

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Solution

The fourth proportional to 8,127.77, 11,216.19 and 4,542.78 is: 6,268.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.77 : 11,216.19 = 4,542.78 : x
  2. Step 2: Convert to fraction form
    8,127.77/11,216.19 = 4,542.78/x
  3. Step 3: Cross multiply
    8,127.77x = 11,216.19 × 4,542.78
  4. Step 4: Simplify right side
    8,127.77x = 50,952,683.61
  5. Step 5: Solve for x
    x = 50,952,683.61/8,127.77
  6. Step 6: Final answer
    x = 6,268.96

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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.