Home / 10,828.75-16,243.20-3,808.75

Finding the Fourth Proportional to 10,828.75, 16,243.20 and 3,808.75

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Solution

The fourth proportional to 10,828.75, 16,243.20 and 3,808.75 is: 5,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,828.75 : 16,243.20 = 3,808.75 : x
  2. Step 2: Convert to fraction form
    10,828.75/16,243.20 = 3,808.75/x
  3. Step 3: Cross multiply
    10,828.75x = 16,243.20 × 3,808.75
  4. Step 4: Simplify right side
    10,828.75x = 61,866,288
  5. Step 5: Solve for x
    x = 61,866,288/10,828.75
  6. Step 6: Final answer
    x = 5,713.15

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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.