Home / 11,909.38-17,863.51-4,887.65

Finding the Fourth Proportional to 11,909.38, 17,863.51 and 4,887.65

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Solution

The fourth proportional to 11,909.38, 17,863.51 and 4,887.65 is: 7,331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.38 : 17,863.51 = 4,887.65 : x
  2. Step 2: Convert to fraction form
    11,909.38/17,863.51 = 4,887.65/x
  3. Step 3: Cross multiply
    11,909.38x = 17,863.51 × 4,887.65
  4. Step 4: Simplify right side
    11,909.38x = 87,310,560.21
  5. Step 5: Solve for x
    x = 87,310,560.21/11,909.38
  6. Step 6: Final answer
    x = 7,331.25

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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.