Home / 12,983.28-19,474.92-3,122.57

Finding the Fourth Proportional to 12,983.28, 19,474.92 and 3,122.57

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Solution

The fourth proportional to 12,983.28, 19,474.92 and 3,122.57 is: 4,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.28 : 19,474.92 = 3,122.57 : x
  2. Step 2: Convert to fraction form
    12,983.28/19,474.92 = 3,122.57/x
  3. Step 3: Cross multiply
    12,983.28x = 19,474.92 × 3,122.57
  4. Step 4: Simplify right side
    12,983.28x = 60,811,703.57
  5. Step 5: Solve for x
    x = 60,811,703.57/12,983.28
  6. Step 6: Final answer
    x = 4,683.85

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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.