Home / 11,308.38-15,607.21-6,832.78

Finding the Fourth Proportional to 11,308.38, 15,607.21 and 6,832.78

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Solution

The fourth proportional to 11,308.38, 15,607.21 and 6,832.78 is: 9,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.38 : 15,607.21 = 6,832.78 : x
  2. Step 2: Convert to fraction form
    11,308.38/15,607.21 = 6,832.78/x
  3. Step 3: Cross multiply
    11,308.38x = 15,607.21 × 6,832.78
  4. Step 4: Simplify right side
    11,308.38x = 106,640,613.73
  5. Step 5: Solve for x
    x = 106,640,613.73/11,308.38
  6. Step 6: Final answer
    x = 9,430.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.