Home / 12,770.36-19,150.68-5,840

Finding the Fourth Proportional to 12,770.36, 19,150.68 and 5,840

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Solution

The fourth proportional to 12,770.36, 19,150.68 and 5,840 is: 8,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.36 : 19,150.68 = 5,840 : x
  2. Step 2: Convert to fraction form
    12,770.36/19,150.68 = 5,840/x
  3. Step 3: Cross multiply
    12,770.36x = 19,150.68 × 5,840
  4. Step 4: Simplify right side
    12,770.36x = 111,839,971.20
  5. Step 5: Solve for x
    x = 111,839,971.20/12,770.36
  6. Step 6: Final answer
    x = 8,757.78

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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.