Home / 13,934-19,237.80-8,974.64

Finding the Fourth Proportional to 13,934, 19,237.80 and 8,974.64

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Solution

The fourth proportional to 13,934, 19,237.80 and 8,974.64 is: 12,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934 : 19,237.80 = 8,974.64 : x
  2. Step 2: Convert to fraction form
    13,934/19,237.80 = 8,974.64/x
  3. Step 3: Cross multiply
    13,934x = 19,237.80 × 8,974.64
  4. Step 4: Simplify right side
    13,934x = 172,652,329.39
  5. Step 5: Solve for x
    x = 172,652,329.39/13,934
  6. Step 6: Final answer
    x = 12,390.72

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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.