Home / 12,142.04-18,213.30-3,376.84

Finding the Fourth Proportional to 12,142.04, 18,213.30 and 3,376.84

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Solution

The fourth proportional to 12,142.04, 18,213.30 and 3,376.84 is: 5,065.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.04 : 18,213.30 = 3,376.84 : x
  2. Step 2: Convert to fraction form
    12,142.04/18,213.30 = 3,376.84/x
  3. Step 3: Cross multiply
    12,142.04x = 18,213.30 × 3,376.84
  4. Step 4: Simplify right side
    12,142.04x = 61,503,399.97
  5. Step 5: Solve for x
    x = 61,503,399.97/12,142.04
  6. Step 6: Final answer
    x = 5,065.33

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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.