Home / 18,370.05-27,554.46-7,981.80

Finding the Fourth Proportional to 18,370.05, 27,554.46 and 7,981.80

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Solution

The fourth proportional to 18,370.05, 27,554.46 and 7,981.80 is: 11,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.05 : 27,554.46 = 7,981.80 : x
  2. Step 2: Convert to fraction form
    18,370.05/27,554.46 = 7,981.80/x
  3. Step 3: Cross multiply
    18,370.05x = 27,554.46 × 7,981.80
  4. Step 4: Simplify right side
    18,370.05x = 219,934,051.06
  5. Step 5: Solve for x
    x = 219,934,051.06/18,370.05
  6. Step 6: Final answer
    x = 11,972.43

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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.