Home / 7,133.27-9,843.93-3,989.25

Finding the Fourth Proportional to 7,133.27, 9,843.93 and 3,989.25

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Solution

The fourth proportional to 7,133.27, 9,843.93 and 3,989.25 is: 5,505.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.27 : 9,843.93 = 3,989.25 : x
  2. Step 2: Convert to fraction form
    7,133.27/9,843.93 = 3,989.25/x
  3. Step 3: Cross multiply
    7,133.27x = 9,843.93 × 3,989.25
  4. Step 4: Simplify right side
    7,133.27x = 39,269,897.75
  5. Step 5: Solve for x
    x = 39,269,897.75/7,133.27
  6. Step 6: Final answer
    x = 5,505.18

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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.