Home / 18,711.38-25,821.31-10,213.22

Finding the Fourth Proportional to 18,711.38, 25,821.31 and 10,213.22

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Solution

The fourth proportional to 18,711.38, 25,821.31 and 10,213.22 is: 14,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.38 : 25,821.31 = 10,213.22 : x
  2. Step 2: Convert to fraction form
    18,711.38/25,821.31 = 10,213.22/x
  3. Step 3: Cross multiply
    18,711.38x = 25,821.31 × 10,213.22
  4. Step 4: Simplify right side
    18,711.38x = 263,718,719.72
  5. Step 5: Solve for x
    x = 263,718,719.72/18,711.38
  6. Step 6: Final answer
    x = 14,094.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.