Home / 14,154.12-21,231.15-3,765.87

Finding the Fourth Proportional to 14,154.12, 21,231.15 and 3,765.87

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Solution

The fourth proportional to 14,154.12, 21,231.15 and 3,765.87 is: 5,648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.12 : 21,231.15 = 3,765.87 : x
  2. Step 2: Convert to fraction form
    14,154.12/21,231.15 = 3,765.87/x
  3. Step 3: Cross multiply
    14,154.12x = 21,231.15 × 3,765.87
  4. Step 4: Simplify right side
    14,154.12x = 79,953,625.87
  5. Step 5: Solve for x
    x = 79,953,625.87/14,154.12
  6. Step 6: Final answer
    x = 5,648.79

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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.