Home / 18,142.26-27,215.10-7,049.81

Finding the Fourth Proportional to 18,142.26, 27,215.10 and 7,049.81

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Solution

The fourth proportional to 18,142.26, 27,215.10 and 7,049.81 is: 10,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.26 : 27,215.10 = 7,049.81 : x
  2. Step 2: Convert to fraction form
    18,142.26/27,215.10 = 7,049.81/x
  3. Step 3: Cross multiply
    18,142.26x = 27,215.10 × 7,049.81
  4. Step 4: Simplify right side
    18,142.26x = 191,861,148.06
  5. Step 5: Solve for x
    x = 191,861,148.06/18,142.26
  6. Step 6: Final answer
    x = 10,575.37

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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.