Home / 18,786.12-28,178.52-8,932.44

Finding the Fourth Proportional to 18,786.12, 28,178.52 and 8,932.44

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Solution

The fourth proportional to 18,786.12, 28,178.52 and 8,932.44 is: 13,398.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.12 : 28,178.52 = 8,932.44 : x
  2. Step 2: Convert to fraction form
    18,786.12/28,178.52 = 8,932.44/x
  3. Step 3: Cross multiply
    18,786.12x = 28,178.52 × 8,932.44
  4. Step 4: Simplify right side
    18,786.12x = 251,702,939.19
  5. Step 5: Solve for x
    x = 251,702,939.19/18,786.12
  6. Step 6: Final answer
    x = 13,398.35

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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.