Home / 12,952.74-19,438.56-5,163.78

Finding the Fourth Proportional to 12,952.74, 19,438.56 and 5,163.78

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Solution

The fourth proportional to 12,952.74, 19,438.56 and 5,163.78 is: 7,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,952.74 : 19,438.56 = 5,163.78 : x
  2. Step 2: Convert to fraction form
    12,952.74/19,438.56 = 5,163.78/x
  3. Step 3: Cross multiply
    12,952.74x = 19,438.56 × 5,163.78
  4. Step 4: Simplify right side
    12,952.74x = 100,376,447.36
  5. Step 5: Solve for x
    x = 100,376,447.36/12,952.74
  6. Step 6: Final answer
    x = 7,749.44

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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.