Home / 8,131.52-11,221.40-4,943.76

Finding the Fourth Proportional to 8,131.52, 11,221.40 and 4,943.76

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Solution

The fourth proportional to 8,131.52, 11,221.40 and 4,943.76 is: 6,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.52 : 11,221.40 = 4,943.76 : x
  2. Step 2: Convert to fraction form
    8,131.52/11,221.40 = 4,943.76/x
  3. Step 3: Cross multiply
    8,131.52x = 11,221.40 × 4,943.76
  4. Step 4: Simplify right side
    8,131.52x = 55,475,908.46
  5. Step 5: Solve for x
    x = 55,475,908.46/8,131.52
  6. Step 6: Final answer
    x = 6,822.33

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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.