Home / 18,213.28-27,323.80-10,319.57

Finding the Fourth Proportional to 18,213.28, 27,323.80 and 10,319.57

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Solution

The fourth proportional to 18,213.28, 27,323.80 and 10,319.57 is: 15,481.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.28 : 27,323.80 = 10,319.57 : x
  2. Step 2: Convert to fraction form
    18,213.28/27,323.80 = 10,319.57/x
  3. Step 3: Cross multiply
    18,213.28x = 27,323.80 × 10,319.57
  4. Step 4: Simplify right side
    18,213.28x = 281,969,960.51
  5. Step 5: Solve for x
    x = 281,969,960.51/18,213.28
  6. Step 6: Final answer
    x = 15,481.56

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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.