Home / 19,371.69-29,032.01-7,678.53

Finding the Fourth Proportional to 19,371.69, 29,032.01 and 7,678.53

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Solution

The fourth proportional to 19,371.69, 29,032.01 and 7,678.53 is: 11,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371.69 : 29,032.01 = 7,678.53 : x
  2. Step 2: Convert to fraction form
    19,371.69/29,032.01 = 7,678.53/x
  3. Step 3: Cross multiply
    19,371.69x = 29,032.01 × 7,678.53
  4. Step 4: Simplify right side
    19,371.69x = 222,923,121.35
  5. Step 5: Solve for x
    x = 222,923,121.35/19,371.69
  6. Step 6: Final answer
    x = 11,507.68

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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.