Home / 7,947.60-11,919.78-3,266.52

Finding the Fourth Proportional to 7,947.60, 11,919.78 and 3,266.52

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Solution

The fourth proportional to 7,947.60, 11,919.78 and 3,266.52 is: 4,899.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.60 : 11,919.78 = 3,266.52 : x
  2. Step 2: Convert to fraction form
    7,947.60/11,919.78 = 3,266.52/x
  3. Step 3: Cross multiply
    7,947.60x = 11,919.78 × 3,266.52
  4. Step 4: Simplify right side
    7,947.60x = 38,936,199.77
  5. Step 5: Solve for x
    x = 38,936,199.77/7,947.60
  6. Step 6: Final answer
    x = 4,899.11

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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.