Home / 13,171.24-19,772.30-10,399.76

Finding the Fourth Proportional to 13,171.24, 19,772.30 and 10,399.76

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Solution

The fourth proportional to 13,171.24, 19,772.30 and 10,399.76 is: 15,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.24 : 19,772.30 = 10,399.76 : x
  2. Step 2: Convert to fraction form
    13,171.24/19,772.30 = 10,399.76/x
  3. Step 3: Cross multiply
    13,171.24x = 19,772.30 × 10,399.76
  4. Step 4: Simplify right side
    13,171.24x = 205,627,174.65
  5. Step 5: Solve for x
    x = 205,627,174.65/13,171.24
  6. Step 6: Final answer
    x = 15,611.83

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1.5x scale

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.