Home / 13,147.11-19,726.81-5,750.61

Finding the Fourth Proportional to 13,147.11, 19,726.81 and 5,750.61

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Solution

The fourth proportional to 13,147.11, 19,726.81 and 5,750.61 is: 8,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.11 : 19,726.81 = 5,750.61 : x
  2. Step 2: Convert to fraction form
    13,147.11/19,726.81 = 5,750.61/x
  3. Step 3: Cross multiply
    13,147.11x = 19,726.81 × 5,750.61
  4. Step 4: Simplify right side
    13,147.11x = 113,441,190.85
  5. Step 5: Solve for x
    x = 113,441,190.85/13,147.11
  6. Step 6: Final answer
    x = 8,628.60

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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.