Home / 12,785.14-19,169.61-5,394.70

Finding the Fourth Proportional to 12,785.14, 19,169.61 and 5,394.70

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Solution

The fourth proportional to 12,785.14, 19,169.61 and 5,394.70 is: 8,088.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.14 : 19,169.61 = 5,394.70 : x
  2. Step 2: Convert to fraction form
    12,785.14/19,169.61 = 5,394.70/x
  3. Step 3: Cross multiply
    12,785.14x = 19,169.61 × 5,394.70
  4. Step 4: Simplify right side
    12,785.14x = 103,414,295.07
  5. Step 5: Solve for x
    x = 103,414,295.07/12,785.14
  6. Step 6: Final answer
    x = 8,088.63

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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.