Home / 11,909.11-16,434.23-6,531.44

Finding the Fourth Proportional to 11,909.11, 16,434.23 and 6,531.44

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Solution

The fourth proportional to 11,909.11, 16,434.23 and 6,531.44 is: 9,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.11 : 16,434.23 = 6,531.44 : x
  2. Step 2: Convert to fraction form
    11,909.11/16,434.23 = 6,531.44/x
  3. Step 3: Cross multiply
    11,909.11x = 16,434.23 × 6,531.44
  4. Step 4: Simplify right side
    11,909.11x = 107,339,211.03
  5. Step 5: Solve for x
    x = 107,339,211.03/11,909.11
  6. Step 6: Final answer
    x = 9,013.20

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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.