Home / 14,119.80-21,179.70-13,255.80

Finding the Fourth Proportional to 14,119.80, 21,179.70 and 13,255.80

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Solution

The fourth proportional to 14,119.80, 21,179.70 and 13,255.80 is: 19,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.80 : 21,179.70 = 13,255.80 : x
  2. Step 2: Convert to fraction form
    14,119.80/21,179.70 = 13,255.80/x
  3. Step 3: Cross multiply
    14,119.80x = 21,179.70 × 13,255.80
  4. Step 4: Simplify right side
    14,119.80x = 280,753,867.26
  5. Step 5: Solve for x
    x = 280,753,867.26/14,119.80
  6. Step 6: Final answer
    x = 19,883.70

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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.