Home / 19,310.88-28,967.01-6,660.57

Finding the Fourth Proportional to 19,310.88, 28,967.01 and 6,660.57

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Solution

The fourth proportional to 19,310.88, 28,967.01 and 6,660.57 is: 9,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.88 : 28,967.01 = 6,660.57 : x
  2. Step 2: Convert to fraction form
    19,310.88/28,967.01 = 6,660.57/x
  3. Step 3: Cross multiply
    19,310.88x = 28,967.01 × 6,660.57
  4. Step 4: Simplify right side
    19,310.88x = 192,936,797.80
  5. Step 5: Solve for x
    x = 192,936,797.80/19,310.88
  6. Step 6: Final answer
    x = 9,991.09

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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.