Home / 13,195.92-18,209.72-7,227.62

Finding the Fourth Proportional to 13,195.92, 18,209.72 and 7,227.62

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Solution

The fourth proportional to 13,195.92, 18,209.72 and 7,227.62 is: 9,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.92 : 18,209.72 = 7,227.62 : x
  2. Step 2: Convert to fraction form
    13,195.92/18,209.72 = 7,227.62/x
  3. Step 3: Cross multiply
    13,195.92x = 18,209.72 × 7,227.62
  4. Step 4: Simplify right side
    13,195.92x = 131,612,845.42
  5. Step 5: Solve for x
    x = 131,612,845.42/13,195.92
  6. Step 6: Final answer
    x = 9,973.75

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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.