Home / 16,161.28-22,287.36-13,672.96

Finding the Fourth Proportional to 16,161.28, 22,287.36 and 13,672.96

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Solution

The fourth proportional to 16,161.28, 22,287.36 and 13,672.96 is: 18,855.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,161.28 : 22,287.36 = 13,672.96 : x
  2. Step 2: Convert to fraction form
    16,161.28/22,287.36 = 13,672.96/x
  3. Step 3: Cross multiply
    16,161.28x = 22,287.36 × 13,672.96
  4. Step 4: Simplify right side
    16,161.28x = 304,734,181.79
  5. Step 5: Solve for x
    x = 304,734,181.79/16,161.28
  6. Step 6: Final answer
    x = 18,855.82

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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.