Home / 15,704.34-21,671.94-8,630.79

Finding the Fourth Proportional to 15,704.34, 21,671.94 and 8,630.79

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Solution

The fourth proportional to 15,704.34, 21,671.94 and 8,630.79 is: 11,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.34 : 21,671.94 = 8,630.79 : x
  2. Step 2: Convert to fraction form
    15,704.34/21,671.94 = 8,630.79/x
  3. Step 3: Cross multiply
    15,704.34x = 21,671.94 × 8,630.79
  4. Step 4: Simplify right side
    15,704.34x = 187,045,963.03
  5. Step 5: Solve for x
    x = 187,045,963.03/15,704.34
  6. Step 6: Final answer
    x = 11,910.46

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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.