Home / 11,251.68-15,512.76-7,708.56

Finding the Fourth Proportional to 11,251.68, 15,512.76 and 7,708.56

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Solution

The fourth proportional to 11,251.68, 15,512.76 and 7,708.56 is: 10,627.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.68 : 15,512.76 = 7,708.56 : x
  2. Step 2: Convert to fraction form
    11,251.68/15,512.76 = 7,708.56/x
  3. Step 3: Cross multiply
    11,251.68x = 15,512.76 × 7,708.56
  4. Step 4: Simplify right side
    11,251.68x = 119,581,041.23
  5. Step 5: Solve for x
    x = 119,581,041.23/11,251.68
  6. Step 6: Final answer
    x = 10,627.84

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1.5x scale

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.