Home / 8,757.36-12,085.09-4,778.44

Finding the Fourth Proportional to 8,757.36, 12,085.09 and 4,778.44

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Solution

The fourth proportional to 8,757.36, 12,085.09 and 4,778.44 is: 6,594.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.36 : 12,085.09 = 4,778.44 : x
  2. Step 2: Convert to fraction form
    8,757.36/12,085.09 = 4,778.44/x
  3. Step 3: Cross multiply
    8,757.36x = 12,085.09 × 4,778.44
  4. Step 4: Simplify right side
    8,757.36x = 57,747,835.30
  5. Step 5: Solve for x
    x = 57,747,835.30/8,757.36
  6. Step 6: Final answer
    x = 6,594.21

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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.