Home / 21,169.66-29,215.02-11,737.54

Finding the Fourth Proportional to 21,169.66, 29,215.02 and 11,737.54

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Solution

The fourth proportional to 21,169.66, 29,215.02 and 11,737.54 is: 16,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.66 : 29,215.02 = 11,737.54 : x
  2. Step 2: Convert to fraction form
    21,169.66/29,215.02 = 11,737.54/x
  3. Step 3: Cross multiply
    21,169.66x = 29,215.02 × 11,737.54
  4. Step 4: Simplify right side
    21,169.66x = 342,912,465.85
  5. Step 5: Solve for x
    x = 342,912,465.85/21,169.66
  6. Step 6: Final answer
    x = 16,198.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.