Home / 14,589.60-20,131.68-8,216.16

Finding the Fourth Proportional to 14,589.60, 20,131.68 and 8,216.16

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Solution

The fourth proportional to 14,589.60, 20,131.68 and 8,216.16 is: 11,337.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,589.60 : 20,131.68 = 8,216.16 : x
  2. Step 2: Convert to fraction form
    14,589.60/20,131.68 = 8,216.16/x
  3. Step 3: Cross multiply
    14,589.60x = 20,131.68 × 8,216.16
  4. Step 4: Simplify right side
    14,589.60x = 165,405,103.95
  5. Step 5: Solve for x
    x = 165,405,103.95/14,589.60
  6. Step 6: Final answer
    x = 11,337.19

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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.