Home / 14,439.97-19,918.84-8,693.42

Finding the Fourth Proportional to 14,439.97, 19,918.84 and 8,693.42

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Solution

The fourth proportional to 14,439.97, 19,918.84 and 8,693.42 is: 11,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.97 : 19,918.84 = 8,693.42 : x
  2. Step 2: Convert to fraction form
    14,439.97/19,918.84 = 8,693.42/x
  3. Step 3: Cross multiply
    14,439.97x = 19,918.84 × 8,693.42
  4. Step 4: Simplify right side
    14,439.97x = 173,162,920.86
  5. Step 5: Solve for x
    x = 173,162,920.86/14,439.97
  6. Step 6: Final answer
    x = 11,991.92

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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.