Home / 8,180.28-11,289.96-4,642.74

Finding the Fourth Proportional to 8,180.28, 11,289.96 and 4,642.74

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Solution

The fourth proportional to 8,180.28, 11,289.96 and 4,642.74 is: 6,407.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.28 : 11,289.96 = 4,642.74 : x
  2. Step 2: Convert to fraction form
    8,180.28/11,289.96 = 4,642.74/x
  3. Step 3: Cross multiply
    8,180.28x = 11,289.96 × 4,642.74
  4. Step 4: Simplify right side
    8,180.28x = 52,416,348.89
  5. Step 5: Solve for x
    x = 52,416,348.89/8,180.28
  6. Step 6: Final answer
    x = 6,407.65

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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.