Home / 14,138.96-21,208.44-5,371.80

Finding the Fourth Proportional to 14,138.96, 21,208.44 and 5,371.80

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Solution

The fourth proportional to 14,138.96, 21,208.44 and 5,371.80 is: 8,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.96 : 21,208.44 = 5,371.80 : x
  2. Step 2: Convert to fraction form
    14,138.96/21,208.44 = 5,371.80/x
  3. Step 3: Cross multiply
    14,138.96x = 21,208.44 × 5,371.80
  4. Step 4: Simplify right side
    14,138.96x = 113,927,497.99
  5. Step 5: Solve for x
    x = 113,927,497.99/14,138.96
  6. Step 6: Final answer
    x = 8,057.70

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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.