Home / 13,321.05-19,983.09-4,553.91

Finding the Fourth Proportional to 13,321.05, 19,983.09 and 4,553.91

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Solution

The fourth proportional to 13,321.05, 19,983.09 and 4,553.91 is: 6,831.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.05 : 19,983.09 = 4,553.91 : x
  2. Step 2: Convert to fraction form
    13,321.05/19,983.09 = 4,553.91/x
  3. Step 3: Cross multiply
    13,321.05x = 19,983.09 × 4,553.91
  4. Step 4: Simplify right side
    13,321.05x = 91,001,193.38
  5. Step 5: Solve for x
    x = 91,001,193.38/13,321.05
  6. Step 6: Final answer
    x = 6,831.38

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1.5x scale

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.