Home / 14,653.11-21,979.39-4,657.80

Finding the Fourth Proportional to 14,653.11, 21,979.39 and 4,657.80

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Solution

The fourth proportional to 14,653.11, 21,979.39 and 4,657.80 is: 6,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.11 : 21,979.39 = 4,657.80 : x
  2. Step 2: Convert to fraction form
    14,653.11/21,979.39 = 4,657.80/x
  3. Step 3: Cross multiply
    14,653.11x = 21,979.39 × 4,657.80
  4. Step 4: Simplify right side
    14,653.11x = 102,375,602.74
  5. Step 5: Solve for x
    x = 102,375,602.74/14,653.11
  6. Step 6: Final answer
    x = 6,986.61

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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.