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Finding the Fourth Proportional to 15,611, 23,420.28 and 6,377

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Solution

The fourth proportional to 15,611, 23,420.28 and 6,377 is: 9,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611 : 23,420.28 = 6,377 : x
  2. Step 2: Convert to fraction form
    15,611/23,420.28 = 6,377/x
  3. Step 3: Cross multiply
    15,611x = 23,420.28 × 6,377
  4. Step 4: Simplify right side
    15,611x = 149,351,125.56
  5. Step 5: Solve for x
    x = 149,351,125.56/15,611
  6. Step 6: Final answer
    x = 9,567.04

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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.