Home / 15,336.26-21,164.82-8,622.98

Finding the Fourth Proportional to 15,336.26, 21,164.82 and 8,622.98

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Solution

The fourth proportional to 15,336.26, 21,164.82 and 8,622.98 is: 11,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336.26 : 21,164.82 = 8,622.98 : x
  2. Step 2: Convert to fraction form
    15,336.26/21,164.82 = 8,622.98/x
  3. Step 3: Cross multiply
    15,336.26x = 21,164.82 × 8,622.98
  4. Step 4: Simplify right side
    15,336.26x = 182,503,819.56
  5. Step 5: Solve for x
    x = 182,503,819.56/15,336.26
  6. Step 6: Final answer
    x = 11,900.15

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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.