Home / 15,559.11-21,470.72-8,843.80

Finding the Fourth Proportional to 15,559.11, 21,470.72 and 8,843.80

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Solution

The fourth proportional to 15,559.11, 21,470.72 and 8,843.80 is: 12,203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559.11 : 21,470.72 = 8,843.80 : x
  2. Step 2: Convert to fraction form
    15,559.11/21,470.72 = 8,843.80/x
  3. Step 3: Cross multiply
    15,559.11x = 21,470.72 × 8,843.80
  4. Step 4: Simplify right side
    15,559.11x = 189,882,753.54
  5. Step 5: Solve for x
    x = 189,882,753.54/15,559.11
  6. Step 6: Final answer
    x = 12,203.96

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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.