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Finding the Fourth Proportional to 6,988.96, 9,635.36 and 5,989.92

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Solution

The fourth proportional to 6,988.96, 9,635.36 and 5,989.92 is: 8,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.96 : 9,635.36 = 5,989.92 : x
  2. Step 2: Convert to fraction form
    6,988.96/9,635.36 = 5,989.92/x
  3. Step 3: Cross multiply
    6,988.96x = 9,635.36 × 5,989.92
  4. Step 4: Simplify right side
    6,988.96x = 57,715,035.57
  5. Step 5: Solve for x
    x = 57,715,035.57/6,988.96
  6. Step 6: Final answer
    x = 8,258.03

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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.