Home / 14,949.91-20,616.82-11,181.79

Finding the Fourth Proportional to 14,949.91, 20,616.82 and 11,181.79

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Solution

The fourth proportional to 14,949.91, 20,616.82 and 11,181.79 is: 15,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,949.91 : 20,616.82 = 11,181.79 : x
  2. Step 2: Convert to fraction form
    14,949.91/20,616.82 = 11,181.79/x
  3. Step 3: Cross multiply
    14,949.91x = 20,616.82 × 11,181.79
  4. Step 4: Simplify right side
    14,949.91x = 230,532,951.71
  5. Step 5: Solve for x
    x = 230,532,951.71/14,949.91
  6. Step 6: Final answer
    x = 15,420.36

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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.