Home / 12,736.40-19,106.52-3,972

Finding the Fourth Proportional to 12,736.40, 19,106.52 and 3,972

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Solution

The fourth proportional to 12,736.40, 19,106.52 and 3,972 is: 5,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.40 : 19,106.52 = 3,972 : x
  2. Step 2: Convert to fraction form
    12,736.40/19,106.52 = 3,972/x
  3. Step 3: Cross multiply
    12,736.40x = 19,106.52 × 3,972
  4. Step 4: Simplify right side
    12,736.40x = 75,891,097.44
  5. Step 5: Solve for x
    x = 75,891,097.44/12,736.40
  6. Step 6: Final answer
    x = 5,958.60

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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.