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Finding the Fourth Proportional to 11,642.79, 16,067.04 and 6,337.65

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Solution

The fourth proportional to 11,642.79, 16,067.04 and 6,337.65 is: 8,745.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,642.79 : 16,067.04 = 6,337.65 : x
  2. Step 2: Convert to fraction form
    11,642.79/16,067.04 = 6,337.65/x
  3. Step 3: Cross multiply
    11,642.79x = 16,067.04 × 6,337.65
  4. Step 4: Simplify right side
    11,642.79x = 101,827,276.06
  5. Step 5: Solve for x
    x = 101,827,276.06/11,642.79
  6. Step 6: Final answer
    x = 8,745.95

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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.