Home / 15,132.14-22,709.27-7,742.78

Finding the Fourth Proportional to 15,132.14, 22,709.27 and 7,742.78

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Solution

The fourth proportional to 15,132.14, 22,709.27 and 7,742.78 is: 11,619.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.14 : 22,709.27 = 7,742.78 : x
  2. Step 2: Convert to fraction form
    15,132.14/22,709.27 = 7,742.78/x
  3. Step 3: Cross multiply
    15,132.14x = 22,709.27 × 7,742.78
  4. Step 4: Simplify right side
    15,132.14x = 175,832,881.57
  5. Step 5: Solve for x
    x = 175,832,881.57/15,132.14
  6. Step 6: Final answer
    x = 11,619.83

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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.