Home / 10,945.72-16,418.22-3,155.32

Finding the Fourth Proportional to 10,945.72, 16,418.22 and 3,155.32

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Solution

The fourth proportional to 10,945.72, 16,418.22 and 3,155.32 is: 4,732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.72 : 16,418.22 = 3,155.32 : x
  2. Step 2: Convert to fraction form
    10,945.72/16,418.22 = 3,155.32/x
  3. Step 3: Cross multiply
    10,945.72x = 16,418.22 × 3,155.32
  4. Step 4: Simplify right side
    10,945.72x = 51,804,737.93
  5. Step 5: Solve for x
    x = 51,804,737.93/10,945.72
  6. Step 6: Final answer
    x = 4,732.88

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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.