Home / 8,256.22-12,381.81-2,990.59

Finding the Fourth Proportional to 8,256.22, 12,381.81 and 2,990.59

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Solution

The fourth proportional to 8,256.22, 12,381.81 and 2,990.59 is: 4,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.22 : 12,381.81 = 2,990.59 : x
  2. Step 2: Convert to fraction form
    8,256.22/12,381.81 = 2,990.59/x
  3. Step 3: Cross multiply
    8,256.22x = 12,381.81 × 2,990.59
  4. Step 4: Simplify right side
    8,256.22x = 37,028,917.17
  5. Step 5: Solve for x
    x = 37,028,917.17/8,256.22
  6. Step 6: Final answer
    x = 4,484.97

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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.