Home / 14,125.21-21,172.89-4,761.96

Finding the Fourth Proportional to 14,125.21, 21,172.89 and 4,761.96

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Solution

The fourth proportional to 14,125.21, 21,172.89 and 4,761.96 is: 7,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.21 : 21,172.89 = 4,761.96 : x
  2. Step 2: Convert to fraction form
    14,125.21/21,172.89 = 4,761.96/x
  3. Step 3: Cross multiply
    14,125.21x = 21,172.89 × 4,761.96
  4. Step 4: Simplify right side
    14,125.21x = 100,824,572.37
  5. Step 5: Solve for x
    x = 100,824,572.37/14,125.21
  6. Step 6: Final answer
    x = 7,137.92

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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.