Home / 8,461.03-12,691.96-2,221.06

Finding the Fourth Proportional to 8,461.03, 12,691.96 and 2,221.06

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Solution

The fourth proportional to 8,461.03, 12,691.96 and 2,221.06 is: 3,331.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.03 : 12,691.96 = 2,221.06 : x
  2. Step 2: Convert to fraction form
    8,461.03/12,691.96 = 2,221.06/x
  3. Step 3: Cross multiply
    8,461.03x = 12,691.96 × 2,221.06
  4. Step 4: Simplify right side
    8,461.03x = 28,189,530.11
  5. Step 5: Solve for x
    x = 28,189,530.11/8,461.03
  6. Step 6: Final answer
    x = 3,331.69

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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.