Home / 14,818.89-20,449.38-8,104.80

Finding the Fourth Proportional to 14,818.89, 20,449.38 and 8,104.80

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Solution

The fourth proportional to 14,818.89, 20,449.38 and 8,104.80 is: 11,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,818.89 : 20,449.38 = 8,104.80 : x
  2. Step 2: Convert to fraction form
    14,818.89/20,449.38 = 8,104.80/x
  3. Step 3: Cross multiply
    14,818.89x = 20,449.38 × 8,104.80
  4. Step 4: Simplify right side
    14,818.89x = 165,738,135.02
  5. Step 5: Solve for x
    x = 165,738,135.02/14,818.89
  6. Step 6: Final answer
    x = 11,184.25

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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.