Home / 14,279.66-21,419.27-3,891.38

Finding the Fourth Proportional to 14,279.66, 21,419.27 and 3,891.38

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Solution

The fourth proportional to 14,279.66, 21,419.27 and 3,891.38 is: 5,837.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.66 : 21,419.27 = 3,891.38 : x
  2. Step 2: Convert to fraction form
    14,279.66/21,419.27 = 3,891.38/x
  3. Step 3: Cross multiply
    14,279.66x = 21,419.27 × 3,891.38
  4. Step 4: Simplify right side
    14,279.66x = 83,350,518.89
  5. Step 5: Solve for x
    x = 83,350,518.89/14,279.66
  6. Step 6: Final answer
    x = 5,837.01

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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.