Home / 12,951.18-19,425.96-4,185.36

Finding the Fourth Proportional to 12,951.18, 19,425.96 and 4,185.36

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Solution

The fourth proportional to 12,951.18, 19,425.96 and 4,185.36 is: 6,277.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.18 : 19,425.96 = 4,185.36 : x
  2. Step 2: Convert to fraction form
    12,951.18/19,425.96 = 4,185.36/x
  3. Step 3: Cross multiply
    12,951.18x = 19,425.96 × 4,185.36
  4. Step 4: Simplify right side
    12,951.18x = 81,304,635.95
  5. Step 5: Solve for x
    x = 81,304,635.95/12,951.18
  6. Step 6: Final answer
    x = 6,277.78

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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.