Home / 14,824.56-20,458.44-8,109.78

Finding the Fourth Proportional to 14,824.56, 20,458.44 and 8,109.78

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Solution

The fourth proportional to 14,824.56, 20,458.44 and 8,109.78 is: 11,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,824.56 : 20,458.44 = 8,109.78 : x
  2. Step 2: Convert to fraction form
    14,824.56/20,458.44 = 8,109.78/x
  3. Step 3: Cross multiply
    14,824.56x = 20,458.44 × 8,109.78
  4. Step 4: Simplify right side
    14,824.56x = 165,913,447.54
  5. Step 5: Solve for x
    x = 165,913,447.54/14,824.56
  6. Step 6: Final answer
    x = 11,191.80

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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.