Home / 7,639.92-11,394.27-7,508.70

Finding the Fourth Proportional to 7,639.92, 11,394.27 and 7,508.70

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Solution

The fourth proportional to 7,639.92, 11,394.27 and 7,508.70 is: 11,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.92 : 11,394.27 = 7,508.70 : x
  2. Step 2: Convert to fraction form
    7,639.92/11,394.27 = 7,508.70/x
  3. Step 3: Cross multiply
    7,639.92x = 11,394.27 × 7,508.70
  4. Step 4: Simplify right side
    7,639.92x = 85,556,155.15
  5. Step 5: Solve for x
    x = 85,556,155.15/7,639.92
  6. Step 6: Final answer
    x = 11,198.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.