Home / 8,757.06-12,084.54-4,778.28

Finding the Fourth Proportional to 8,757.06, 12,084.54 and 4,778.28

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Solution

The fourth proportional to 8,757.06, 12,084.54 and 4,778.28 is: 6,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.06 : 12,084.54 = 4,778.28 : x
  2. Step 2: Convert to fraction form
    8,757.06/12,084.54 = 4,778.28/x
  3. Step 3: Cross multiply
    8,757.06x = 12,084.54 × 4,778.28
  4. Step 4: Simplify right side
    8,757.06x = 57,743,315.79
  5. Step 5: Solve for x
    x = 57,743,315.79/8,757.06
  6. Step 6: Final answer
    x = 6,593.92

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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.