Home / 19,566.66-29,351.07-7,878.36

Finding the Fourth Proportional to 19,566.66, 29,351.07 and 7,878.36

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Solution

The fourth proportional to 19,566.66, 29,351.07 and 7,878.36 is: 11,817.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,566.66 : 29,351.07 = 7,878.36 : x
  2. Step 2: Convert to fraction form
    19,566.66/29,351.07 = 7,878.36/x
  3. Step 3: Cross multiply
    19,566.66x = 29,351.07 × 7,878.36
  4. Step 4: Simplify right side
    19,566.66x = 231,238,295.85
  5. Step 5: Solve for x
    x = 231,238,295.85/19,566.66
  6. Step 6: Final answer
    x = 11,817.97

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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.