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Finding the Fourth Proportional to 6,495.30, 9,721.08 and 5,401.80

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Solution

The fourth proportional to 6,495.30, 9,721.08 and 5,401.80 is: 8,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,495.30 : 9,721.08 = 5,401.80 : x
  2. Step 2: Convert to fraction form
    6,495.30/9,721.08 = 5,401.80/x
  3. Step 3: Cross multiply
    6,495.30x = 9,721.08 × 5,401.80
  4. Step 4: Simplify right side
    6,495.30x = 52,511,329.94
  5. Step 5: Solve for x
    x = 52,511,329.94/6,495.30
  6. Step 6: Final answer
    x = 8,084.51

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1.5x scale

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.