Home / 18,786.15-28,179.22-4,746.21

Finding the Fourth Proportional to 18,786.15, 28,179.22 and 4,746.21

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Solution

The fourth proportional to 18,786.15, 28,179.22 and 4,746.21 is: 7,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.15 : 28,179.22 = 4,746.21 : x
  2. Step 2: Convert to fraction form
    18,786.15/28,179.22 = 4,746.21/x
  3. Step 3: Cross multiply
    18,786.15x = 28,179.22 × 4,746.21
  4. Step 4: Simplify right side
    18,786.15x = 133,744,624.88
  5. Step 5: Solve for x
    x = 133,744,624.88/18,786.15
  6. Step 6: Final answer
    x = 7,119.32

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Similar ratio
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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.