Home / 11,939.83-17,909.53-4,148.44

Finding the Fourth Proportional to 11,939.83, 17,909.53 and 4,148.44

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Solution

The fourth proportional to 11,939.83, 17,909.53 and 4,148.44 is: 6,222.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.83 : 17,909.53 = 4,148.44 : x
  2. Step 2: Convert to fraction form
    11,939.83/17,909.53 = 4,148.44/x
  3. Step 3: Cross multiply
    11,939.83x = 17,909.53 × 4,148.44
  4. Step 4: Simplify right side
    11,939.83x = 74,296,555.49
  5. Step 5: Solve for x
    x = 74,296,555.49/11,939.83
  6. Step 6: Final answer
    x = 6,222.58

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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.