Home / 11,243.91-16,862.13-5,319.93

Finding the Fourth Proportional to 11,243.91, 16,862.13 and 5,319.93

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Solution

The fourth proportional to 11,243.91, 16,862.13 and 5,319.93 is: 7,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.91 : 16,862.13 = 5,319.93 : x
  2. Step 2: Convert to fraction form
    11,243.91/16,862.13 = 5,319.93/x
  3. Step 3: Cross multiply
    11,243.91x = 16,862.13 × 5,319.93
  4. Step 4: Simplify right side
    11,243.91x = 89,705,351.25
  5. Step 5: Solve for x
    x = 89,705,351.25/11,243.91
  6. Step 6: Final answer
    x = 7,978.13

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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.