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Finding the Fourth Proportional to 6,693, 9,236.34 and 3,900.20

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Solution

The fourth proportional to 6,693, 9,236.34 and 3,900.20 is: 5,382.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693 : 9,236.34 = 3,900.20 : x
  2. Step 2: Convert to fraction form
    6,693/9,236.34 = 3,900.20/x
  3. Step 3: Cross multiply
    6,693x = 9,236.34 × 3,900.20
  4. Step 4: Simplify right side
    6,693x = 36,023,573.27
  5. Step 5: Solve for x
    x = 36,023,573.27/6,693
  6. Step 6: Final answer
    x = 5,382.28

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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.