Home / 12,213.73-18,320.55-5,192.65

Finding the Fourth Proportional to 12,213.73, 18,320.55 and 5,192.65

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Solution

The fourth proportional to 12,213.73, 18,320.55 and 5,192.65 is: 7,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.73 : 18,320.55 = 5,192.65 : x
  2. Step 2: Convert to fraction form
    12,213.73/18,320.55 = 5,192.65/x
  3. Step 3: Cross multiply
    12,213.73x = 18,320.55 × 5,192.65
  4. Step 4: Simplify right side
    12,213.73x = 95,132,207.39
  5. Step 5: Solve for x
    x = 95,132,207.39/12,213.73
  6. Step 6: Final answer
    x = 7,788.96

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1.5x scale

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.