Home / 18,233.51-27,348.84-7,142.72

Finding the Fourth Proportional to 18,233.51, 27,348.84 and 7,142.72

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Solution

The fourth proportional to 18,233.51, 27,348.84 and 7,142.72 is: 10,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,233.51 : 27,348.84 = 7,142.72 : x
  2. Step 2: Convert to fraction form
    18,233.51/27,348.84 = 7,142.72/x
  3. Step 3: Cross multiply
    18,233.51x = 27,348.84 × 7,142.72
  4. Step 4: Simplify right side
    18,233.51x = 195,344,969.70
  5. Step 5: Solve for x
    x = 195,344,969.70/18,233.51
  6. Step 6: Final answer
    x = 10,713.52

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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.