Home / 13,174.76-19,737.30-10,238.78

Finding the Fourth Proportional to 13,174.76, 19,737.30 and 10,238.78

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Solution

The fourth proportional to 13,174.76, 19,737.30 and 10,238.78 is: 15,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.76 : 19,737.30 = 10,238.78 : x
  2. Step 2: Convert to fraction form
    13,174.76/19,737.30 = 10,238.78/x
  3. Step 3: Cross multiply
    13,174.76x = 19,737.30 × 10,238.78
  4. Step 4: Simplify right side
    13,174.76x = 202,085,872.49
  5. Step 5: Solve for x
    x = 202,085,872.49/13,174.76
  6. Step 6: Final answer
    x = 15,338.87

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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.