Home / 8,757.44-12,085.56-4,778.77

Finding the Fourth Proportional to 8,757.44, 12,085.56 and 4,778.77

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Solution

The fourth proportional to 8,757.44, 12,085.56 and 4,778.77 is: 6,594.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.44 : 12,085.56 = 4,778.77 : x
  2. Step 2: Convert to fraction form
    8,757.44/12,085.56 = 4,778.77/x
  3. Step 3: Cross multiply
    8,757.44x = 12,085.56 × 4,778.77
  4. Step 4: Simplify right side
    8,757.44x = 57,754,181.97
  5. Step 5: Solve for x
    x = 57,754,181.97/8,757.44
  6. Step 6: Final answer
    x = 6,594.87

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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.