Home / 10,939.23-16,411.26-3,147.44

Finding the Fourth Proportional to 10,939.23, 16,411.26 and 3,147.44

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Solution

The fourth proportional to 10,939.23, 16,411.26 and 3,147.44 is: 4,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.23 : 16,411.26 = 3,147.44 : x
  2. Step 2: Convert to fraction form
    10,939.23/16,411.26 = 3,147.44/x
  3. Step 3: Cross multiply
    10,939.23x = 16,411.26 × 3,147.44
  4. Step 4: Simplify right side
    10,939.23x = 51,653,374.12
  5. Step 5: Solve for x
    x = 51,653,374.12/10,939.23
  6. Step 6: Final answer
    x = 4,721.85

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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.