Home / 11,249.04-16,870.86-3,853.20

Finding the Fourth Proportional to 11,249.04, 16,870.86 and 3,853.20

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Solution

The fourth proportional to 11,249.04, 16,870.86 and 3,853.20 is: 5,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.04 : 16,870.86 = 3,853.20 : x
  2. Step 2: Convert to fraction form
    11,249.04/16,870.86 = 3,853.20/x
  3. Step 3: Cross multiply
    11,249.04x = 16,870.86 × 3,853.20
  4. Step 4: Simplify right side
    11,249.04x = 65,006,797.75
  5. Step 5: Solve for x
    x = 65,006,797.75/11,249.04
  6. Step 6: Final answer
    x = 5,778.88

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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.