Home / 18,343.38-25,313.86-9,959.88

Finding the Fourth Proportional to 18,343.38, 25,313.86 and 9,959.88

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Solution

The fourth proportional to 18,343.38, 25,313.86 and 9,959.88 is: 13,744.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.38 : 25,313.86 = 9,959.88 : x
  2. Step 2: Convert to fraction form
    18,343.38/25,313.86 = 9,959.88/x
  3. Step 3: Cross multiply
    18,343.38x = 25,313.86 × 9,959.88
  4. Step 4: Simplify right side
    18,343.38x = 252,123,007.94
  5. Step 5: Solve for x
    x = 252,123,007.94/18,343.38
  6. Step 6: Final answer
    x = 13,744.63

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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.