Home / 10,661.08-15,991.68-2,763.05

Finding the Fourth Proportional to 10,661.08, 15,991.68 and 2,763.05

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Solution

The fourth proportional to 10,661.08, 15,991.68 and 2,763.05 is: 4,144.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.08 : 15,991.68 = 2,763.05 : x
  2. Step 2: Convert to fraction form
    10,661.08/15,991.68 = 2,763.05/x
  3. Step 3: Cross multiply
    10,661.08x = 15,991.68 × 2,763.05
  4. Step 4: Simplify right side
    10,661.08x = 44,185,797.61
  5. Step 5: Solve for x
    x = 44,185,797.61/10,661.08
  6. Step 6: Final answer
    x = 4,144.59

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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.