Home / 19,221.03-28,832.76-8,126.26

Finding the Fourth Proportional to 19,221.03, 28,832.76 and 8,126.26

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Solution

The fourth proportional to 19,221.03, 28,832.76 and 8,126.26 is: 12,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.03 : 28,832.76 = 8,126.26 : x
  2. Step 2: Convert to fraction form
    19,221.03/28,832.76 = 8,126.26/x
  3. Step 3: Cross multiply
    19,221.03x = 28,832.76 × 8,126.26
  4. Step 4: Simplify right side
    19,221.03x = 234,302,504.28
  5. Step 5: Solve for x
    x = 234,302,504.28/19,221.03
  6. Step 6: Final answer
    x = 12,189.90

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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.