Home / 13,195.98-18,209.62-7,227.72

Finding the Fourth Proportional to 13,195.98, 18,209.62 and 7,227.72

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Solution

The fourth proportional to 13,195.98, 18,209.62 and 7,227.72 is: 9,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.98 : 18,209.62 = 7,227.72 : x
  2. Step 2: Convert to fraction form
    13,195.98/18,209.62 = 7,227.72/x
  3. Step 3: Cross multiply
    13,195.98x = 18,209.62 × 7,227.72
  4. Step 4: Simplify right side
    13,195.98x = 131,614,034.67
  5. Step 5: Solve for x
    x = 131,614,034.67/13,195.98
  6. Step 6: Final answer
    x = 9,973.80

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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.