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Finding the Fourth Proportional to 6,663.85, 9,995.06 and 3,540.53

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Solution

The fourth proportional to 6,663.85, 9,995.06 and 3,540.53 is: 5,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.85 : 9,995.06 = 3,540.53 : x
  2. Step 2: Convert to fraction form
    6,663.85/9,995.06 = 3,540.53/x
  3. Step 3: Cross multiply
    6,663.85x = 9,995.06 × 3,540.53
  4. Step 4: Simplify right side
    6,663.85x = 35,387,817.07
  5. Step 5: Solve for x
    x = 35,387,817.07/6,663.85
  6. Step 6: Final answer
    x = 5,310.42

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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.