Home / 11,243.43-16,865.13-3,345.91

Finding the Fourth Proportional to 11,243.43, 16,865.13 and 3,345.91

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Solution

The fourth proportional to 11,243.43, 16,865.13 and 3,345.91 is: 5,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.43 : 16,865.13 = 3,345.91 : x
  2. Step 2: Convert to fraction form
    11,243.43/16,865.13 = 3,345.91/x
  3. Step 3: Cross multiply
    11,243.43x = 16,865.13 × 3,345.91
  4. Step 4: Simplify right side
    11,243.43x = 56,429,164.96
  5. Step 5: Solve for x
    x = 56,429,164.96/11,243.43
  6. Step 6: Final answer
    x = 5,018.86

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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.