Home / 8,757.52-12,085.64-4,778.80

Finding the Fourth Proportional to 8,757.52, 12,085.64 and 4,778.80

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Solution

The fourth proportional to 8,757.52, 12,085.64 and 4,778.80 is: 6,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.52 : 12,085.64 = 4,778.80 : x
  2. Step 2: Convert to fraction form
    8,757.52/12,085.64 = 4,778.80/x
  3. Step 3: Cross multiply
    8,757.52x = 12,085.64 × 4,778.80
  4. Step 4: Simplify right side
    8,757.52x = 57,754,856.43
  5. Step 5: Solve for x
    x = 57,754,856.43/8,757.52
  6. Step 6: Final answer
    x = 6,594.89

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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.