Home / 11,139.06-16,711-3,348.48

Finding the Fourth Proportional to 11,139.06, 16,711 and 3,348.48

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Solution

The fourth proportional to 11,139.06, 16,711 and 3,348.48 is: 5,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.06 : 16,711 = 3,348.48 : x
  2. Step 2: Convert to fraction form
    11,139.06/16,711 = 3,348.48/x
  3. Step 3: Cross multiply
    11,139.06x = 16,711 × 3,348.48
  4. Step 4: Simplify right side
    11,139.06x = 55,956,449.28
  5. Step 5: Solve for x
    x = 55,956,449.28/11,139.06
  6. Step 6: Final answer
    x = 5,023.44

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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.