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Finding the Fourth Proportional to 6,642.07, 9,960.87 and 3,353.06

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Solution

The fourth proportional to 6,642.07, 9,960.87 and 3,353.06 is: 5,028.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.07 : 9,960.87 = 3,353.06 : x
  2. Step 2: Convert to fraction form
    6,642.07/9,960.87 = 3,353.06/x
  3. Step 3: Cross multiply
    6,642.07x = 9,960.87 × 3,353.06
  4. Step 4: Simplify right side
    6,642.07x = 33,399,394.76
  5. Step 5: Solve for x
    x = 33,399,394.76/6,642.07
  6. Step 6: Final answer
    x = 5,028.46

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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.