Home / 10,123.92-15,190.74-3,553.20

Finding the Fourth Proportional to 10,123.92, 15,190.74 and 3,553.20

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Solution

The fourth proportional to 10,123.92, 15,190.74 and 3,553.20 is: 5,331.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.92 : 15,190.74 = 3,553.20 : x
  2. Step 2: Convert to fraction form
    10,123.92/15,190.74 = 3,553.20/x
  3. Step 3: Cross multiply
    10,123.92x = 15,190.74 × 3,553.20
  4. Step 4: Simplify right side
    10,123.92x = 53,975,737.37
  5. Step 5: Solve for x
    x = 53,975,737.37/10,123.92
  6. Step 6: Final answer
    x = 5,331.51

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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.