Home / 19,412.67-29,111.82-6,929.36

Finding the Fourth Proportional to 19,412.67, 29,111.82 and 6,929.36

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Solution

The fourth proportional to 19,412.67, 29,111.82 and 6,929.36 is: 10,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.67 : 29,111.82 = 6,929.36 : x
  2. Step 2: Convert to fraction form
    19,412.67/29,111.82 = 6,929.36/x
  3. Step 3: Cross multiply
    19,412.67x = 29,111.82 × 6,929.36
  4. Step 4: Simplify right side
    19,412.67x = 201,726,135.48
  5. Step 5: Solve for x
    x = 201,726,135.48/19,412.67
  6. Step 6: Final answer
    x = 10,391.47

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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.