Home / 14,631.38-20,191.66-8,344.34

Finding the Fourth Proportional to 14,631.38, 20,191.66 and 8,344.34

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Solution

The fourth proportional to 14,631.38, 20,191.66 and 8,344.34 is: 11,515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.38 : 20,191.66 = 8,344.34 : x
  2. Step 2: Convert to fraction form
    14,631.38/20,191.66 = 8,344.34/x
  3. Step 3: Cross multiply
    14,631.38x = 20,191.66 × 8,344.34
  4. Step 4: Simplify right side
    14,631.38x = 168,486,076.20
  5. Step 5: Solve for x
    x = 168,486,076.20/14,631.38
  6. Step 6: Final answer
    x = 11,515.39

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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.