Home / 19,177.58-28,776.71-8,091.95

Finding the Fourth Proportional to 19,177.58, 28,776.71 and 8,091.95

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Solution

The fourth proportional to 19,177.58, 28,776.71 and 8,091.95 is: 12,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,177.58 : 28,776.71 = 8,091.95 : x
  2. Step 2: Convert to fraction form
    19,177.58/28,776.71 = 8,091.95/x
  3. Step 3: Cross multiply
    19,177.58x = 28,776.71 × 8,091.95
  4. Step 4: Simplify right side
    19,177.58x = 232,859,658.02
  5. Step 5: Solve for x
    x = 232,859,658.02/19,177.58
  6. Step 6: Final answer
    x = 12,142.29

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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.