Home / 18,305.62-27,442.23-8,940.40

Finding the Fourth Proportional to 18,305.62, 27,442.23 and 8,940.40

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Solution

The fourth proportional to 18,305.62, 27,442.23 and 8,940.40 is: 13,402.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.62 : 27,442.23 = 8,940.40 : x
  2. Step 2: Convert to fraction form
    18,305.62/27,442.23 = 8,940.40/x
  3. Step 3: Cross multiply
    18,305.62x = 27,442.23 × 8,940.40
  4. Step 4: Simplify right side
    18,305.62x = 245,344,513.09
  5. Step 5: Solve for x
    x = 245,344,513.09/18,305.62
  6. Step 6: Final answer
    x = 13,402.69

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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.