Home / 12,113.65-18,170.43-3,348.55

Finding the Fourth Proportional to 12,113.65, 18,170.43 and 3,348.55

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Solution

The fourth proportional to 12,113.65, 18,170.43 and 3,348.55 is: 5,022.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.65 : 18,170.43 = 3,348.55 : x
  2. Step 2: Convert to fraction form
    12,113.65/18,170.43 = 3,348.55/x
  3. Step 3: Cross multiply
    12,113.65x = 18,170.43 × 3,348.55
  4. Step 4: Simplify right side
    12,113.65x = 60,844,593.38
  5. Step 5: Solve for x
    x = 60,844,593.38/12,113.65
  6. Step 6: Final answer
    x = 5,022.81

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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.