Home / 7,845.28-11,763.60-4,146.88

Finding the Fourth Proportional to 7,845.28, 11,763.60 and 4,146.88

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Solution

The fourth proportional to 7,845.28, 11,763.60 and 4,146.88 is: 6,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.28 : 11,763.60 = 4,146.88 : x
  2. Step 2: Convert to fraction form
    7,845.28/11,763.60 = 4,146.88/x
  3. Step 3: Cross multiply
    7,845.28x = 11,763.60 × 4,146.88
  4. Step 4: Simplify right side
    7,845.28x = 48,782,237.57
  5. Step 5: Solve for x
    x = 48,782,237.57/7,845.28
  6. Step 6: Final answer
    x = 6,218.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.