Home / 11,140.83-15,373.71-8,169.21

Finding the Fourth Proportional to 11,140.83, 15,373.71 and 8,169.21

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Solution

The fourth proportional to 11,140.83, 15,373.71 and 8,169.21 is: 11,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.83 : 15,373.71 = 8,169.21 : x
  2. Step 2: Convert to fraction form
    11,140.83/15,373.71 = 8,169.21/x
  3. Step 3: Cross multiply
    11,140.83x = 15,373.71 × 8,169.21
  4. Step 4: Simplify right side
    11,140.83x = 125,591,065.47
  5. Step 5: Solve for x
    x = 125,591,065.47/11,140.83
  6. Step 6: Final answer
    x = 11,273.04

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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.