Home / 8,768.73-12,098.86-5,231.25

Finding the Fourth Proportional to 8,768.73, 12,098.86 and 5,231.25

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Solution

The fourth proportional to 8,768.73, 12,098.86 and 5,231.25 is: 7,217.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.73 : 12,098.86 = 5,231.25 : x
  2. Step 2: Convert to fraction form
    8,768.73/12,098.86 = 5,231.25/x
  3. Step 3: Cross multiply
    8,768.73x = 12,098.86 × 5,231.25
  4. Step 4: Simplify right side
    8,768.73x = 63,292,161.38
  5. Step 5: Solve for x
    x = 63,292,161.38/8,768.73
  6. Step 6: Final answer
    x = 7,217.94

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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.