Home / 13,286.75-19,913.12-6,251.19

Finding the Fourth Proportional to 13,286.75, 19,913.12 and 6,251.19

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Solution

The fourth proportional to 13,286.75, 19,913.12 and 6,251.19 is: 9,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.75 : 19,913.12 = 6,251.19 : x
  2. Step 2: Convert to fraction form
    13,286.75/19,913.12 = 6,251.19/x
  3. Step 3: Cross multiply
    13,286.75x = 19,913.12 × 6,251.19
  4. Step 4: Simplify right side
    13,286.75x = 124,480,665.36
  5. Step 5: Solve for x
    x = 124,480,665.36/13,286.75
  6. Step 6: Final answer
    x = 9,368.79

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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.