Home / 8,126.21-12,189.33-2,932.08

Finding the Fourth Proportional to 8,126.21, 12,189.33 and 2,932.08

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Solution

The fourth proportional to 8,126.21, 12,189.33 and 2,932.08 is: 4,398.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.21 : 12,189.33 = 2,932.08 : x
  2. Step 2: Convert to fraction form
    8,126.21/12,189.33 = 2,932.08/x
  3. Step 3: Cross multiply
    8,126.21x = 12,189.33 × 2,932.08
  4. Step 4: Simplify right side
    8,126.21x = 35,740,090.71
  5. Step 5: Solve for x
    x = 35,740,090.71/8,126.21
  6. Step 6: Final answer
    x = 4,398.13

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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.