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Finding the Fourth Proportional to 8,377.50, 11,561.22 and 4,651.50

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Solution

The fourth proportional to 8,377.50, 11,561.22 and 4,651.50 is: 6,419.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.50 : 11,561.22 = 4,651.50 : x
  2. Step 2: Convert to fraction form
    8,377.50/11,561.22 = 4,651.50/x
  3. Step 3: Cross multiply
    8,377.50x = 11,561.22 × 4,651.50
  4. Step 4: Simplify right side
    8,377.50x = 53,777,014.83
  5. Step 5: Solve for x
    x = 53,777,014.83/8,377.50
  6. Step 6: Final answer
    x = 6,419.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.