Home / 16,213.03-22,372.91-9,139.30

Finding the Fourth Proportional to 16,213.03, 22,372.91 and 9,139.30

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Solution

The fourth proportional to 16,213.03, 22,372.91 and 9,139.30 is: 12,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,213.03 : 22,372.91 = 9,139.30 : x
  2. Step 2: Convert to fraction form
    16,213.03/22,372.91 = 9,139.30/x
  3. Step 3: Cross multiply
    16,213.03x = 22,372.91 × 9,139.30
  4. Step 4: Simplify right side
    16,213.03x = 204,472,669.01
  5. Step 5: Solve for x
    x = 204,472,669.01/16,213.03
  6. Step 6: Final answer
    x = 12,611.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.