Home / 18,654.49-27,981.74-12,793.33

Finding the Fourth Proportional to 18,654.49, 27,981.74 and 12,793.33

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Solution

The fourth proportional to 18,654.49, 27,981.74 and 12,793.33 is: 19,190.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.49 : 27,981.74 = 12,793.33 : x
  2. Step 2: Convert to fraction form
    18,654.49/27,981.74 = 12,793.33/x
  3. Step 3: Cross multiply
    18,654.49x = 27,981.74 × 12,793.33
  4. Step 4: Simplify right side
    18,654.49x = 357,979,633.79
  5. Step 5: Solve for x
    x = 357,979,633.79/18,654.49
  6. Step 6: Final answer
    x = 19,190.00

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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.