Home / 18,771.17-28,161.61-7,084.49

Finding the Fourth Proportional to 18,771.17, 28,161.61 and 7,084.49

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Solution

The fourth proportional to 18,771.17, 28,161.61 and 7,084.49 is: 10,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.17 : 28,161.61 = 7,084.49 : x
  2. Step 2: Convert to fraction form
    18,771.17/28,161.61 = 7,084.49/x
  3. Step 3: Cross multiply
    18,771.17x = 28,161.61 × 7,084.49
  4. Step 4: Simplify right side
    18,771.17x = 199,510,485.91
  5. Step 5: Solve for x
    x = 199,510,485.91/18,771.17
  6. Step 6: Final answer
    x = 10,628.56

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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.