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Finding the Fourth Proportional to 6,969.64, 9,617.54 and 3,825.72

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Solution

The fourth proportional to 6,969.64, 9,617.54 and 3,825.72 is: 5,279.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,969.64 : 9,617.54 = 3,825.72 : x
  2. Step 2: Convert to fraction form
    6,969.64/9,617.54 = 3,825.72/x
  3. Step 3: Cross multiply
    6,969.64x = 9,617.54 × 3,825.72
  4. Step 4: Simplify right side
    6,969.64x = 36,794,015.13
  5. Step 5: Solve for x
    x = 36,794,015.13/6,969.64
  6. Step 6: Final answer
    x = 5,279.18

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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.