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Finding the Fourth Proportional to 8,940.88, 13,401 and 6,565.60

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Solution

The fourth proportional to 8,940.88, 13,401 and 6,565.60 is: 9,840.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.88 : 13,401 = 6,565.60 : x
  2. Step 2: Convert to fraction form
    8,940.88/13,401 = 6,565.60/x
  3. Step 3: Cross multiply
    8,940.88x = 13,401 × 6,565.60
  4. Step 4: Simplify right side
    8,940.88x = 87,985,605.60
  5. Step 5: Solve for x
    x = 87,985,605.60/8,940.88
  6. Step 6: Final answer
    x = 9,840.82

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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.