Home / 13,974.39-20,955.11-8,132.67

Finding the Fourth Proportional to 13,974.39, 20,955.11 and 8,132.67

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Solution

The fourth proportional to 13,974.39, 20,955.11 and 8,132.67 is: 12,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.39 : 20,955.11 = 8,132.67 : x
  2. Step 2: Convert to fraction form
    13,974.39/20,955.11 = 8,132.67/x
  3. Step 3: Cross multiply
    13,974.39x = 20,955.11 × 8,132.67
  4. Step 4: Simplify right side
    13,974.39x = 170,420,953.78
  5. Step 5: Solve for x
    x = 170,420,953.78/13,974.39
  6. Step 6: Final answer
    x = 12,195.23

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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.