Home / 13,134.28-18,116.28-7,825

Finding the Fourth Proportional to 13,134.28, 18,116.28 and 7,825

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Solution

The fourth proportional to 13,134.28, 18,116.28 and 7,825 is: 10,793.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.28 : 18,116.28 = 7,825 : x
  2. Step 2: Convert to fraction form
    13,134.28/18,116.28 = 7,825/x
  3. Step 3: Cross multiply
    13,134.28x = 18,116.28 × 7,825
  4. Step 4: Simplify right side
    13,134.28x = 141,759,891
  5. Step 5: Solve for x
    x = 141,759,891/13,134.28
  6. Step 6: Final answer
    x = 10,793.12

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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.