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Finding the Fourth Proportional to 18,658.16, 27,966.36 and 9,404.72

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Solution

The fourth proportional to 18,658.16, 27,966.36 and 9,404.72 is: 14,096.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.16 : 27,966.36 = 9,404.72 : x
  2. Step 2: Convert to fraction form
    18,658.16/27,966.36 = 9,404.72/x
  3. Step 3: Cross multiply
    18,658.16x = 27,966.36 × 9,404.72
  4. Step 4: Simplify right side
    18,658.16x = 263,015,785.22
  5. Step 5: Solve for x
    x = 263,015,785.22/18,658.16
  6. Step 6: Final answer
    x = 14,096.56

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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.