Home / 16,919.88-25,360.38-9,117.96

Finding the Fourth Proportional to 16,919.88, 25,360.38 and 9,117.96

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Solution

The fourth proportional to 16,919.88, 25,360.38 and 9,117.96 is: 13,666.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.88 : 25,360.38 = 9,117.96 : x
  2. Step 2: Convert to fraction form
    16,919.88/25,360.38 = 9,117.96/x
  3. Step 3: Cross multiply
    16,919.88x = 25,360.38 × 9,117.96
  4. Step 4: Simplify right side
    16,919.88x = 231,234,930.42
  5. Step 5: Solve for x
    x = 231,234,930.42/16,919.88
  6. Step 6: Final answer
    x = 13,666.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.