Home / 10,419.85-15,626.99-2,922.96

Finding the Fourth Proportional to 10,419.85, 15,626.99 and 2,922.96

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Solution

The fourth proportional to 10,419.85, 15,626.99 and 2,922.96 is: 4,383.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.85 : 15,626.99 = 2,922.96 : x
  2. Step 2: Convert to fraction form
    10,419.85/15,626.99 = 2,922.96/x
  3. Step 3: Cross multiply
    10,419.85x = 15,626.99 × 2,922.96
  4. Step 4: Simplify right side
    10,419.85x = 45,677,066.69
  5. Step 5: Solve for x
    x = 45,677,066.69/10,419.85
  6. Step 6: Final answer
    x = 4,383.66

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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.