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Finding the Fourth Proportional to 33,146.28, 49,719.36 and 9,789.12

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Solution

The fourth proportional to 33,146.28, 49,719.36 and 9,789.12 is: 14,683.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,146.28 : 49,719.36 = 9,789.12 : x
  2. Step 2: Convert to fraction form
    33,146.28/49,719.36 = 9,789.12/x
  3. Step 3: Cross multiply
    33,146.28x = 49,719.36 × 9,789.12
  4. Step 4: Simplify right side
    33,146.28x = 486,708,781.36
  5. Step 5: Solve for x
    x = 486,708,781.36/33,146.28
  6. Step 6: Final answer
    x = 14,683.66

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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.