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Finding the Fourth Proportional to 12,570.58, 18,863.81 and 7,027.56

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Solution

The fourth proportional to 12,570.58, 18,863.81 and 7,027.56 is: 10,545.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.58 : 18,863.81 = 7,027.56 : x
  2. Step 2: Convert to fraction form
    12,570.58/18,863.81 = 7,027.56/x
  3. Step 3: Cross multiply
    12,570.58x = 18,863.81 × 7,027.56
  4. Step 4: Simplify right side
    12,570.58x = 132,566,556.60
  5. Step 5: Solve for x
    x = 132,566,556.60/12,570.58
  6. Step 6: Final answer
    x = 10,545.78

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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.