Home / 9,128.22-13,687.44-6,209.82

Finding the Fourth Proportional to 9,128.22, 13,687.44 and 6,209.82

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Solution

The fourth proportional to 9,128.22, 13,687.44 and 6,209.82 is: 9,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.22 : 13,687.44 = 6,209.82 : x
  2. Step 2: Convert to fraction form
    9,128.22/13,687.44 = 6,209.82/x
  3. Step 3: Cross multiply
    9,128.22x = 13,687.44 × 6,209.82
  4. Step 4: Simplify right side
    9,128.22x = 84,996,538.66
  5. Step 5: Solve for x
    x = 84,996,538.66/9,128.22
  6. Step 6: Final answer
    x = 9,311.40

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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.