Home / 7,488.28-11,257.04-6,947

Finding the Fourth Proportional to 7,488.28, 11,257.04 and 6,947

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Solution

The fourth proportional to 7,488.28, 11,257.04 and 6,947 is: 10,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.28 : 11,257.04 = 6,947 : x
  2. Step 2: Convert to fraction form
    7,488.28/11,257.04 = 6,947/x
  3. Step 3: Cross multiply
    7,488.28x = 11,257.04 × 6,947
  4. Step 4: Simplify right side
    7,488.28x = 78,202,656.88
  5. Step 5: Solve for x
    x = 78,202,656.88/7,488.28
  6. Step 6: Final answer
    x = 10,443.34

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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.