Home / 11,488.20-17,235.77-4,091.70

Finding the Fourth Proportional to 11,488.20, 17,235.77 and 4,091.70

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Solution

The fourth proportional to 11,488.20, 17,235.77 and 4,091.70 is: 6,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,488.20 : 17,235.77 = 4,091.70 : x
  2. Step 2: Convert to fraction form
    11,488.20/17,235.77 = 4,091.70/x
  3. Step 3: Cross multiply
    11,488.20x = 17,235.77 × 4,091.70
  4. Step 4: Simplify right side
    11,488.20x = 70,523,587.32
  5. Step 5: Solve for x
    x = 70,523,587.32/11,488.20
  6. Step 6: Final answer
    x = 6,138.78

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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.