Home / 19,182.58-28,764.06-8,785.42

Finding the Fourth Proportional to 19,182.58, 28,764.06 and 8,785.42

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Solution

The fourth proportional to 19,182.58, 28,764.06 and 8,785.42 is: 13,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,182.58 : 28,764.06 = 8,785.42 : x
  2. Step 2: Convert to fraction form
    19,182.58/28,764.06 = 8,785.42/x
  3. Step 3: Cross multiply
    19,182.58x = 28,764.06 × 8,785.42
  4. Step 4: Simplify right side
    19,182.58x = 252,704,348.01
  5. Step 5: Solve for x
    x = 252,704,348.01/19,182.58
  6. Step 6: Final answer
    x = 13,173.64

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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.