Home / 12,911.44-19,386.60-7,371.04

Finding the Fourth Proportional to 12,911.44, 19,386.60 and 7,371.04

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Solution

The fourth proportional to 12,911.44, 19,386.60 and 7,371.04 is: 11,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.44 : 19,386.60 = 7,371.04 : x
  2. Step 2: Convert to fraction form
    12,911.44/19,386.60 = 7,371.04/x
  3. Step 3: Cross multiply
    12,911.44x = 19,386.60 × 7,371.04
  4. Step 4: Simplify right side
    12,911.44x = 142,899,404.06
  5. Step 5: Solve for x
    x = 142,899,404.06/12,911.44
  6. Step 6: Final answer
    x = 11,067.66

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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.