Home / 13,195.83-18,209.55-7,227.48

Finding the Fourth Proportional to 13,195.83, 18,209.55 and 7,227.48

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Solution

The fourth proportional to 13,195.83, 18,209.55 and 7,227.48 is: 9,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.83 : 18,209.55 = 7,227.48 : x
  2. Step 2: Convert to fraction form
    13,195.83/18,209.55 = 7,227.48/x
  3. Step 3: Cross multiply
    13,195.83x = 18,209.55 × 7,227.48
  4. Step 4: Simplify right side
    13,195.83x = 131,609,158.43
  5. Step 5: Solve for x
    x = 131,609,158.43/13,195.83
  6. Step 6: Final answer
    x = 9,973.54

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Double scale
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Similar ratio
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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.