Home / 18,844.96-28,245.48-8,434.84

Finding the Fourth Proportional to 18,844.96, 28,245.48 and 8,434.84

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Solution

The fourth proportional to 18,844.96, 28,245.48 and 8,434.84 is: 12,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.96 : 28,245.48 = 8,434.84 : x
  2. Step 2: Convert to fraction form
    18,844.96/28,245.48 = 8,434.84/x
  3. Step 3: Cross multiply
    18,844.96x = 28,245.48 × 8,434.84
  4. Step 4: Simplify right side
    18,844.96x = 238,246,104.52
  5. Step 5: Solve for x
    x = 238,246,104.52/18,844.96
  6. Step 6: Final answer
    x = 12,642.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.