Home / 14,091.14-21,138.11-5,208.80

Finding the Fourth Proportional to 14,091.14, 21,138.11 and 5,208.80

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Solution

The fourth proportional to 14,091.14, 21,138.11 and 5,208.80 is: 7,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.14 : 21,138.11 = 5,208.80 : x
  2. Step 2: Convert to fraction form
    14,091.14/21,138.11 = 5,208.80/x
  3. Step 3: Cross multiply
    14,091.14x = 21,138.11 × 5,208.80
  4. Step 4: Simplify right side
    14,091.14x = 110,104,173.97
  5. Step 5: Solve for x
    x = 110,104,173.97/14,091.14
  6. Step 6: Final answer
    x = 7,813.72

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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.