Home / 10,839.12-16,286.09-10,401.72

Finding the Fourth Proportional to 10,839.12, 16,286.09 and 10,401.72

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Solution

The fourth proportional to 10,839.12, 16,286.09 and 10,401.72 is: 15,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.12 : 16,286.09 = 10,401.72 : x
  2. Step 2: Convert to fraction form
    10,839.12/16,286.09 = 10,401.72/x
  3. Step 3: Cross multiply
    10,839.12x = 16,286.09 × 10,401.72
  4. Step 4: Simplify right side
    10,839.12x = 169,403,296.07
  5. Step 5: Solve for x
    x = 169,403,296.07/10,839.12
  6. Step 6: Final answer
    x = 15,628.88

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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.