Home / 12,680.93-19,025.45-5,286.17

Finding the Fourth Proportional to 12,680.93, 19,025.45 and 5,286.17

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Solution

The fourth proportional to 12,680.93, 19,025.45 and 5,286.17 is: 7,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.93 : 19,025.45 = 5,286.17 : x
  2. Step 2: Convert to fraction form
    12,680.93/19,025.45 = 5,286.17/x
  3. Step 3: Cross multiply
    12,680.93x = 19,025.45 × 5,286.17
  4. Step 4: Simplify right side
    12,680.93x = 100,571,641.47
  5. Step 5: Solve for x
    x = 100,571,641.47/12,680.93
  6. Step 6: Final answer
    x = 7,930.94

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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.