Home / 10,257.39-15,389.67-3,238.49

Finding the Fourth Proportional to 10,257.39, 15,389.67 and 3,238.49

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Solution

The fourth proportional to 10,257.39, 15,389.67 and 3,238.49 is: 4,858.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.39 : 15,389.67 = 3,238.49 : x
  2. Step 2: Convert to fraction form
    10,257.39/15,389.67 = 3,238.49/x
  3. Step 3: Cross multiply
    10,257.39x = 15,389.67 × 3,238.49
  4. Step 4: Simplify right side
    10,257.39x = 49,839,276.21
  5. Step 5: Solve for x
    x = 49,839,276.21/10,257.39
  6. Step 6: Final answer
    x = 4,858.87

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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.