Home / 14,221.80-21,335.67-5,456.66

Finding the Fourth Proportional to 14,221.80, 21,335.67 and 5,456.66

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Solution

The fourth proportional to 14,221.80, 21,335.67 and 5,456.66 is: 8,186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.80 : 21,335.67 = 5,456.66 : x
  2. Step 2: Convert to fraction form
    14,221.80/21,335.67 = 5,456.66/x
  3. Step 3: Cross multiply
    14,221.80x = 21,335.67 × 5,456.66
  4. Step 4: Simplify right side
    14,221.80x = 116,421,390.38
  5. Step 5: Solve for x
    x = 116,421,390.38/14,221.80
  6. Step 6: Final answer
    x = 8,186.12

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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.