Home / 7,107.14-9,807.18-3,963.53

Finding the Fourth Proportional to 7,107.14, 9,807.18 and 3,963.53

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Solution

The fourth proportional to 7,107.14, 9,807.18 and 3,963.53 is: 5,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.14 : 9,807.18 = 3,963.53 : x
  2. Step 2: Convert to fraction form
    7,107.14/9,807.18 = 3,963.53/x
  3. Step 3: Cross multiply
    7,107.14x = 9,807.18 × 3,963.53
  4. Step 4: Simplify right side
    7,107.14x = 38,871,061.80
  5. Step 5: Solve for x
    x = 38,871,061.80/7,107.14
  6. Step 6: Final answer
    x = 5,469.30

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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.