Home / 13,914.38-20,875-4,053.76

Finding the Fourth Proportional to 13,914.38, 20,875 and 4,053.76

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Solution

The fourth proportional to 13,914.38, 20,875 and 4,053.76 is: 6,081.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.38 : 20,875 = 4,053.76 : x
  2. Step 2: Convert to fraction form
    13,914.38/20,875 = 4,053.76/x
  3. Step 3: Cross multiply
    13,914.38x = 20,875 × 4,053.76
  4. Step 4: Simplify right side
    13,914.38x = 84,622,240
  5. Step 5: Solve for x
    x = 84,622,240/13,914.38
  6. Step 6: Final answer
    x = 6,081.64

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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.