Home / 18,709.85-28,068.47-6,863.73

Finding the Fourth Proportional to 18,709.85, 28,068.47 and 6,863.73

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Solution

The fourth proportional to 18,709.85, 28,068.47 and 6,863.73 is: 10,296.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.85 : 28,068.47 = 6,863.73 : x
  2. Step 2: Convert to fraction form
    18,709.85/28,068.47 = 6,863.73/x
  3. Step 3: Cross multiply
    18,709.85x = 28,068.47 × 6,863.73
  4. Step 4: Simplify right side
    18,709.85x = 192,654,399.59
  5. Step 5: Solve for x
    x = 192,654,399.59/18,709.85
  6. Step 6: Final answer
    x = 10,296.95

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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.