Home / 14,091.12-21,136.68-4,231.44

Finding the Fourth Proportional to 14,091.12, 21,136.68 and 4,231.44

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Solution

The fourth proportional to 14,091.12, 21,136.68 and 4,231.44 is: 6,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.12 : 21,136.68 = 4,231.44 : x
  2. Step 2: Convert to fraction form
    14,091.12/21,136.68 = 4,231.44/x
  3. Step 3: Cross multiply
    14,091.12x = 21,136.68 × 4,231.44
  4. Step 4: Simplify right side
    14,091.12x = 89,438,593.22
  5. Step 5: Solve for x
    x = 89,438,593.22/14,091.12
  6. Step 6: Final answer
    x = 6,347.16

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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.