Home / 8,169.12-11,273.28-4,443.12

Finding the Fourth Proportional to 8,169.12, 11,273.28 and 4,443.12

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Solution

The fourth proportional to 8,169.12, 11,273.28 and 4,443.12 is: 6,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.12 : 11,273.28 = 4,443.12 : x
  2. Step 2: Convert to fraction form
    8,169.12/11,273.28 = 4,443.12/x
  3. Step 3: Cross multiply
    8,169.12x = 11,273.28 × 4,443.12
  4. Step 4: Simplify right side
    8,169.12x = 50,088,535.83
  5. Step 5: Solve for x
    x = 50,088,535.83/8,169.12
  6. Step 6: Final answer
    x = 6,131.45

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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.