Home / 11,086.20-16,625.70-3,689.40

Finding the Fourth Proportional to 11,086.20, 16,625.70 and 3,689.40

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Solution

The fourth proportional to 11,086.20, 16,625.70 and 3,689.40 is: 5,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,086.20 : 16,625.70 = 3,689.40 : x
  2. Step 2: Convert to fraction form
    11,086.20/16,625.70 = 3,689.40/x
  3. Step 3: Cross multiply
    11,086.20x = 16,625.70 × 3,689.40
  4. Step 4: Simplify right side
    11,086.20x = 61,338,857.58
  5. Step 5: Solve for x
    x = 61,338,857.58/11,086.20
  6. Step 6: Final answer
    x = 5,532.90

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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.