Home / 11,478.62-17,216.91-3,158.37

Finding the Fourth Proportional to 11,478.62, 17,216.91 and 3,158.37

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Solution

The fourth proportional to 11,478.62, 17,216.91 and 3,158.37 is: 4,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.62 : 17,216.91 = 3,158.37 : x
  2. Step 2: Convert to fraction form
    11,478.62/17,216.91 = 3,158.37/x
  3. Step 3: Cross multiply
    11,478.62x = 17,216.91 × 3,158.37
  4. Step 4: Simplify right side
    11,478.62x = 54,377,372.04
  5. Step 5: Solve for x
    x = 54,377,372.04/11,478.62
  6. Step 6: Final answer
    x = 4,737.28

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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.