Home / 8,180.64-11,289.12-4,454.56

Finding the Fourth Proportional to 8,180.64, 11,289.12 and 4,454.56

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Solution

The fourth proportional to 8,180.64, 11,289.12 and 4,454.56 is: 6,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.64 : 11,289.12 = 4,454.56 : x
  2. Step 2: Convert to fraction form
    8,180.64/11,289.12 = 4,454.56/x
  3. Step 3: Cross multiply
    8,180.64x = 11,289.12 × 4,454.56
  4. Step 4: Simplify right side
    8,180.64x = 50,288,062.39
  5. Step 5: Solve for x
    x = 50,288,062.39/8,180.64
  6. Step 6: Final answer
    x = 6,147.20

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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.