Home / 14,109.88-21,164.87-3,579.91

Finding the Fourth Proportional to 14,109.88, 21,164.87 and 3,579.91

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Solution

The fourth proportional to 14,109.88, 21,164.87 and 3,579.91 is: 5,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.88 : 21,164.87 = 3,579.91 : x
  2. Step 2: Convert to fraction form
    14,109.88/21,164.87 = 3,579.91/x
  3. Step 3: Cross multiply
    14,109.88x = 21,164.87 × 3,579.91
  4. Step 4: Simplify right side
    14,109.88x = 75,768,329.76
  5. Step 5: Solve for x
    x = 75,768,329.76/14,109.88
  6. Step 6: Final answer
    x = 5,369.88

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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.