Home / 8,169.20-11,273.48-4,812.70

Finding the Fourth Proportional to 8,169.20, 11,273.48 and 4,812.70

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Solution

The fourth proportional to 8,169.20, 11,273.48 and 4,812.70 is: 6,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.20 : 11,273.48 = 4,812.70 : x
  2. Step 2: Convert to fraction form
    8,169.20/11,273.48 = 4,812.70/x
  3. Step 3: Cross multiply
    8,169.20x = 11,273.48 × 4,812.70
  4. Step 4: Simplify right side
    8,169.20x = 54,255,877.20
  5. Step 5: Solve for x
    x = 54,255,877.20/8,169.20
  6. Step 6: Final answer
    x = 6,641.52

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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.