Home / 14,117.80-21,173.25-4,755.38

Finding the Fourth Proportional to 14,117.80, 21,173.25 and 4,755.38

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Solution

The fourth proportional to 14,117.80, 21,173.25 and 4,755.38 is: 7,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.80 : 21,173.25 = 4,755.38 : x
  2. Step 2: Convert to fraction form
    14,117.80/21,173.25 = 4,755.38/x
  3. Step 3: Cross multiply
    14,117.80x = 21,173.25 × 4,755.38
  4. Step 4: Simplify right side
    14,117.80x = 100,686,849.59
  5. Step 5: Solve for x
    x = 100,686,849.59/14,117.80
  6. Step 6: Final answer
    x = 7,131.91

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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.