Home / 13,932.10-19,220.73-8,623.30

Finding the Fourth Proportional to 13,932.10, 19,220.73 and 8,623.30

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Solution

The fourth proportional to 13,932.10, 19,220.73 and 8,623.30 is: 11,896.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.10 : 19,220.73 = 8,623.30 : x
  2. Step 2: Convert to fraction form
    13,932.10/19,220.73 = 8,623.30/x
  3. Step 3: Cross multiply
    13,932.10x = 19,220.73 × 8,623.30
  4. Step 4: Simplify right side
    13,932.10x = 165,746,121.01
  5. Step 5: Solve for x
    x = 165,746,121.01/13,932.10
  6. Step 6: Final answer
    x = 11,896.71

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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.