Home / 13,952.44-20,919.48-7,948.65

Finding the Fourth Proportional to 13,952.44, 20,919.48 and 7,948.65

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Solution

The fourth proportional to 13,952.44, 20,919.48 and 7,948.65 is: 11,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.44 : 20,919.48 = 7,948.65 : x
  2. Step 2: Convert to fraction form
    13,952.44/20,919.48 = 7,948.65/x
  3. Step 3: Cross multiply
    13,952.44x = 20,919.48 × 7,948.65
  4. Step 4: Simplify right side
    13,952.44x = 166,281,624.70
  5. Step 5: Solve for x
    x = 166,281,624.70/13,952.44
  6. Step 6: Final answer
    x = 11,917.75

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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.