Home / 15,704.39-21,671.92-8,630.93

Finding the Fourth Proportional to 15,704.39, 21,671.92 and 8,630.93

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Solution

The fourth proportional to 15,704.39, 21,671.92 and 8,630.93 is: 11,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.39 : 21,671.92 = 8,630.93 : x
  2. Step 2: Convert to fraction form
    15,704.39/21,671.92 = 8,630.93/x
  3. Step 3: Cross multiply
    15,704.39x = 21,671.92 × 8,630.93
  4. Step 4: Simplify right side
    15,704.39x = 187,048,824.49
  5. Step 5: Solve for x
    x = 187,048,824.49/15,704.39
  6. Step 6: Final answer
    x = 11,910.61

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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.