Home / 8,081-11,151.96-4,938.92

Finding the Fourth Proportional to 8,081, 11,151.96 and 4,938.92

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Solution

The fourth proportional to 8,081, 11,151.96 and 4,938.92 is: 6,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081 : 11,151.96 = 4,938.92 : x
  2. Step 2: Convert to fraction form
    8,081/11,151.96 = 4,938.92/x
  3. Step 3: Cross multiply
    8,081x = 11,151.96 × 4,938.92
  4. Step 4: Simplify right side
    8,081x = 55,078,638.28
  5. Step 5: Solve for x
    x = 55,078,638.28/8,081
  6. Step 6: Final answer
    x = 6,815.82

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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.