Home / 14,239.76-21,361.68-4,379.87

Finding the Fourth Proportional to 14,239.76, 21,361.68 and 4,379.87

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Solution

The fourth proportional to 14,239.76, 21,361.68 and 4,379.87 is: 6,570.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.76 : 21,361.68 = 4,379.87 : x
  2. Step 2: Convert to fraction form
    14,239.76/21,361.68 = 4,379.87/x
  3. Step 3: Cross multiply
    14,239.76x = 21,361.68 × 4,379.87
  4. Step 4: Simplify right side
    14,239.76x = 93,561,274.57
  5. Step 5: Solve for x
    x = 93,561,274.57/14,239.76
  6. Step 6: Final answer
    x = 6,570.43

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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.