Home / 14,156.19-21,231.45-13,453.65

Finding the Fourth Proportional to 14,156.19, 21,231.45 and 13,453.65

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Solution

The fourth proportional to 14,156.19, 21,231.45 and 13,453.65 is: 20,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156.19 : 21,231.45 = 13,453.65 : x
  2. Step 2: Convert to fraction form
    14,156.19/21,231.45 = 13,453.65/x
  3. Step 3: Cross multiply
    14,156.19x = 21,231.45 × 13,453.65
  4. Step 4: Simplify right side
    14,156.19x = 285,640,497.29
  5. Step 5: Solve for x
    x = 285,640,497.29/14,156.19
  6. Step 6: Final answer
    x = 20,177.78

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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.