Home / 13,983.86-20,976.02-7,396.43

Finding the Fourth Proportional to 13,983.86, 20,976.02 and 7,396.43

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Solution

The fourth proportional to 13,983.86, 20,976.02 and 7,396.43 is: 11,094.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.86 : 20,976.02 = 7,396.43 : x
  2. Step 2: Convert to fraction form
    13,983.86/20,976.02 = 7,396.43/x
  3. Step 3: Cross multiply
    13,983.86x = 20,976.02 × 7,396.43
  4. Step 4: Simplify right side
    13,983.86x = 155,147,521.75
  5. Step 5: Solve for x
    x = 155,147,521.75/13,983.86
  6. Step 6: Final answer
    x = 11,094.76

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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.