Home / 8,768.31-12,100.92-4,992.70

Finding the Fourth Proportional to 8,768.31, 12,100.92 and 4,992.70

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Solution

The fourth proportional to 8,768.31, 12,100.92 and 4,992.70 is: 6,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.31 : 12,100.92 = 4,992.70 : x
  2. Step 2: Convert to fraction form
    8,768.31/12,100.92 = 4,992.70/x
  3. Step 3: Cross multiply
    8,768.31x = 12,100.92 × 4,992.70
  4. Step 4: Simplify right side
    8,768.31x = 60,416,177.82
  5. Step 5: Solve for x
    x = 60,416,177.82/8,768.31
  6. Step 6: Final answer
    x = 6,890.29

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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.