Home / 12,694.70-19,005.60-7,773.95

Finding the Fourth Proportional to 12,694.70, 19,005.60 and 7,773.95

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Solution

The fourth proportional to 12,694.70, 19,005.60 and 7,773.95 is: 11,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.70 : 19,005.60 = 7,773.95 : x
  2. Step 2: Convert to fraction form
    12,694.70/19,005.60 = 7,773.95/x
  3. Step 3: Cross multiply
    12,694.70x = 19,005.60 × 7,773.95
  4. Step 4: Simplify right side
    12,694.70x = 147,748,584.12
  5. Step 5: Solve for x
    x = 147,748,584.12/12,694.70
  6. Step 6: Final answer
    x = 11,638.60

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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.