Home / 14,449.72-19,940.52-8,161.96

Finding the Fourth Proportional to 14,449.72, 19,940.52 and 8,161.96

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Solution

The fourth proportional to 14,449.72, 19,940.52 and 8,161.96 is: 11,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,449.72 : 19,940.52 = 8,161.96 : x
  2. Step 2: Convert to fraction form
    14,449.72/19,940.52 = 8,161.96/x
  3. Step 3: Cross multiply
    14,449.72x = 19,940.52 × 8,161.96
  4. Step 4: Simplify right side
    14,449.72x = 162,753,726.62
  5. Step 5: Solve for x
    x = 162,753,726.62/14,449.72
  6. Step 6: Final answer
    x = 11,263.45

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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.