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Finding the Fourth Proportional to 11,345.66, 17,017.11 and 3,949.49

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Solution

The fourth proportional to 11,345.66, 17,017.11 and 3,949.49 is: 5,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.66 : 17,017.11 = 3,949.49 : x
  2. Step 2: Convert to fraction form
    11,345.66/17,017.11 = 3,949.49/x
  3. Step 3: Cross multiply
    11,345.66x = 17,017.11 × 3,949.49
  4. Step 4: Simplify right side
    11,345.66x = 67,208,820.69
  5. Step 5: Solve for x
    x = 67,208,820.69/11,345.66
  6. Step 6: Final answer
    x = 5,923.75

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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.