Home / 18,864.62-28,296.12-5,716.43

Finding the Fourth Proportional to 18,864.62, 28,296.12 and 5,716.43

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Solution

The fourth proportional to 18,864.62, 28,296.12 and 5,716.43 is: 8,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.62 : 28,296.12 = 5,716.43 : x
  2. Step 2: Convert to fraction form
    18,864.62/28,296.12 = 5,716.43/x
  3. Step 3: Cross multiply
    18,864.62x = 28,296.12 × 5,716.43
  4. Step 4: Simplify right side
    18,864.62x = 161,752,789.25
  5. Step 5: Solve for x
    x = 161,752,789.25/18,864.62
  6. Step 6: Final answer
    x = 8,574.40

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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.