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Finding the Fourth Proportional to 12,993.39, 19,476.15 and 6,751.87

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Solution

The fourth proportional to 12,993.39, 19,476.15 and 6,751.87 is: 10,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993.39 : 19,476.15 = 6,751.87 : x
  2. Step 2: Convert to fraction form
    12,993.39/19,476.15 = 6,751.87/x
  3. Step 3: Cross multiply
    12,993.39x = 19,476.15 × 6,751.87
  4. Step 4: Simplify right side
    12,993.39x = 131,500,358.89
  5. Step 5: Solve for x
    x = 131,500,358.89/12,993.39
  6. Step 6: Final answer
    x = 10,120.56

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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.