Home / 7,107.48-9,807.75-3,963.60

Finding the Fourth Proportional to 7,107.48, 9,807.75 and 3,963.60

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Solution

The fourth proportional to 7,107.48, 9,807.75 and 3,963.60 is: 5,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.48 : 9,807.75 = 3,963.60 : x
  2. Step 2: Convert to fraction form
    7,107.48/9,807.75 = 3,963.60/x
  3. Step 3: Cross multiply
    7,107.48x = 9,807.75 × 3,963.60
  4. Step 4: Simplify right side
    7,107.48x = 38,873,997.90
  5. Step 5: Solve for x
    x = 38,873,997.90/7,107.48
  6. Step 6: Final answer
    x = 5,469.45

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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.