Home / 11,951.21-16,491.33-6,645.71

Finding the Fourth Proportional to 11,951.21, 16,491.33 and 6,645.71

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Solution

The fourth proportional to 11,951.21, 16,491.33 and 6,645.71 is: 9,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.21 : 16,491.33 = 6,645.71 : x
  2. Step 2: Convert to fraction form
    11,951.21/16,491.33 = 6,645.71/x
  3. Step 3: Cross multiply
    11,951.21x = 16,491.33 × 6,645.71
  4. Step 4: Simplify right side
    11,951.21x = 109,596,514.24
  5. Step 5: Solve for x
    x = 109,596,514.24/11,951.21
  6. Step 6: Final answer
    x = 9,170.33

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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.