Home / 18,470.78-27,698.85-6,777.62

Finding the Fourth Proportional to 18,470.78, 27,698.85 and 6,777.62

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Solution

The fourth proportional to 18,470.78, 27,698.85 and 6,777.62 is: 10,163.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.78 : 27,698.85 = 6,777.62 : x
  2. Step 2: Convert to fraction form
    18,470.78/27,698.85 = 6,777.62/x
  3. Step 3: Cross multiply
    18,470.78x = 27,698.85 × 6,777.62
  4. Step 4: Simplify right side
    18,470.78x = 187,732,141.24
  5. Step 5: Solve for x
    x = 187,732,141.24/18,470.78
  6. Step 6: Final answer
    x = 10,163.74

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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.