Home / 12,181.19-18,260.85-4,790.96

Finding the Fourth Proportional to 12,181.19, 18,260.85 and 4,790.96

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Solution

The fourth proportional to 12,181.19, 18,260.85 and 4,790.96 is: 7,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.19 : 18,260.85 = 4,790.96 : x
  2. Step 2: Convert to fraction form
    12,181.19/18,260.85 = 4,790.96/x
  3. Step 3: Cross multiply
    12,181.19x = 18,260.85 × 4,790.96
  4. Step 4: Simplify right side
    12,181.19x = 87,486,922.59
  5. Step 5: Solve for x
    x = 87,486,922.59/12,181.19
  6. Step 6: Final answer
    x = 7,182.13

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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.