Home / 14,221.90-21,227.51-13,346.38

Finding the Fourth Proportional to 14,221.90, 21,227.51 and 13,346.38

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Solution

The fourth proportional to 14,221.90, 21,227.51 and 13,346.38 is: 19,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.90 : 21,227.51 = 13,346.38 : x
  2. Step 2: Convert to fraction form
    14,221.90/21,227.51 = 13,346.38/x
  3. Step 3: Cross multiply
    14,221.90x = 21,227.51 × 13,346.38
  4. Step 4: Simplify right side
    14,221.90x = 283,310,414.91
  5. Step 5: Solve for x
    x = 283,310,414.91/14,221.90
  6. Step 6: Final answer
    x = 19,920.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.