Home / 7,609.87-11,409.27-5,138.56

Finding the Fourth Proportional to 7,609.87, 11,409.27 and 5,138.56

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Solution

The fourth proportional to 7,609.87, 11,409.27 and 5,138.56 is: 7,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,609.87 : 11,409.27 = 5,138.56 : x
  2. Step 2: Convert to fraction form
    7,609.87/11,409.27 = 5,138.56/x
  3. Step 3: Cross multiply
    7,609.87x = 11,409.27 × 5,138.56
  4. Step 4: Simplify right side
    7,609.87x = 58,627,218.45
  5. Step 5: Solve for x
    x = 58,627,218.45/7,609.87
  6. Step 6: Final answer
    x = 7,704.10

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1.5x scale

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.