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Finding the Fourth Proportional to 7,960.22, 10,988.04 and 6,836.64

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Solution

The fourth proportional to 7,960.22, 10,988.04 and 6,836.64 is: 9,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.22 : 10,988.04 = 6,836.64 : x
  2. Step 2: Convert to fraction form
    7,960.22/10,988.04 = 6,836.64/x
  3. Step 3: Cross multiply
    7,960.22x = 10,988.04 × 6,836.64
  4. Step 4: Simplify right side
    7,960.22x = 75,121,273.79
  5. Step 5: Solve for x
    x = 75,121,273.79/7,960.22
  6. Step 6: Final answer
    x = 9,437.09

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1.5x scale

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.