Home / 12,872.44-19,308.42-8,646.04

Finding the Fourth Proportional to 12,872.44, 19,308.42 and 8,646.04

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Solution

The fourth proportional to 12,872.44, 19,308.42 and 8,646.04 is: 12,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872.44 : 19,308.42 = 8,646.04 : x
  2. Step 2: Convert to fraction form
    12,872.44/19,308.42 = 8,646.04/x
  3. Step 3: Cross multiply
    12,872.44x = 19,308.42 × 8,646.04
  4. Step 4: Simplify right side
    12,872.44x = 166,941,371.66
  5. Step 5: Solve for x
    x = 166,941,371.66/12,872.44
  6. Step 6: Final answer
    x = 12,968.90

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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.