Home / 14,612.85-20,165.33-8,239.38

Finding the Fourth Proportional to 14,612.85, 20,165.33 and 8,239.38

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Solution

The fourth proportional to 14,612.85, 20,165.33 and 8,239.38 is: 11,370.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.85 : 20,165.33 = 8,239.38 : x
  2. Step 2: Convert to fraction form
    14,612.85/20,165.33 = 8,239.38/x
  3. Step 3: Cross multiply
    14,612.85x = 20,165.33 × 8,239.38
  4. Step 4: Simplify right side
    14,612.85x = 166,149,816.70
  5. Step 5: Solve for x
    x = 166,149,816.70/14,612.85
  6. Step 6: Final answer
    x = 11,370.12

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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.