Home / 8,147.13-12,209.64-3,461.26

Finding the Fourth Proportional to 8,147.13, 12,209.64 and 3,461.26

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Solution

The fourth proportional to 8,147.13, 12,209.64 and 3,461.26 is: 5,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.13 : 12,209.64 = 3,461.26 : x
  2. Step 2: Convert to fraction form
    8,147.13/12,209.64 = 3,461.26/x
  3. Step 3: Cross multiply
    8,147.13x = 12,209.64 × 3,461.26
  4. Step 4: Simplify right side
    8,147.13x = 42,260,721.24
  5. Step 5: Solve for x
    x = 42,260,721.24/8,147.13
  6. Step 6: Final answer
    x = 5,187.19

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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.