Home / 19,915.69-29,876.28-6,764.53

Finding the Fourth Proportional to 19,915.69, 29,876.28 and 6,764.53

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Solution

The fourth proportional to 19,915.69, 29,876.28 and 6,764.53 is: 10,147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.69 : 29,876.28 = 6,764.53 : x
  2. Step 2: Convert to fraction form
    19,915.69/29,876.28 = 6,764.53/x
  3. Step 3: Cross multiply
    19,915.69x = 29,876.28 × 6,764.53
  4. Step 4: Simplify right side
    19,915.69x = 202,098,992.35
  5. Step 5: Solve for x
    x = 202,098,992.35/19,915.69
  6. Step 6: Final answer
    x = 10,147.73

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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.