Home / 14,625.18-21,910.14-7,221

Finding the Fourth Proportional to 14,625.18, 21,910.14 and 7,221

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Solution

The fourth proportional to 14,625.18, 21,910.14 and 7,221 is: 10,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,625.18 : 21,910.14 = 7,221 : x
  2. Step 2: Convert to fraction form
    14,625.18/21,910.14 = 7,221/x
  3. Step 3: Cross multiply
    14,625.18x = 21,910.14 × 7,221
  4. Step 4: Simplify right side
    14,625.18x = 158,213,120.94
  5. Step 5: Solve for x
    x = 158,213,120.94/14,625.18
  6. Step 6: Final answer
    x = 10,817.86

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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.