Home / 14,658.26-21,934.83-12,690.66

Finding the Fourth Proportional to 14,658.26, 21,934.83 and 12,690.66

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Solution

The fourth proportional to 14,658.26, 21,934.83 and 12,690.66 is: 18,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658.26 : 21,934.83 = 12,690.66 : x
  2. Step 2: Convert to fraction form
    14,658.26/21,934.83 = 12,690.66/x
  3. Step 3: Cross multiply
    14,658.26x = 21,934.83 × 12,690.66
  4. Step 4: Simplify right side
    14,658.26x = 278,367,469.69
  5. Step 5: Solve for x
    x = 278,367,469.69/14,658.26
  6. Step 6: Final answer
    x = 18,990.49

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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.