Home / 9,143.43-13,712.39-3,878.33

Finding the Fourth Proportional to 9,143.43, 13,712.39 and 3,878.33

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Solution

The fourth proportional to 9,143.43, 13,712.39 and 3,878.33 is: 5,816.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.43 : 13,712.39 = 3,878.33 : x
  2. Step 2: Convert to fraction form
    9,143.43/13,712.39 = 3,878.33/x
  3. Step 3: Cross multiply
    9,143.43x = 13,712.39 × 3,878.33
  4. Step 4: Simplify right side
    9,143.43x = 53,181,177.23
  5. Step 5: Solve for x
    x = 53,181,177.23/9,143.43
  6. Step 6: Final answer
    x = 5,816.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.