Home / 15,108.37-22,640.67-8,520.55

Finding the Fourth Proportional to 15,108.37, 22,640.67 and 8,520.55

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Solution

The fourth proportional to 15,108.37, 22,640.67 and 8,520.55 is: 12,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.37 : 22,640.67 = 8,520.55 : x
  2. Step 2: Convert to fraction form
    15,108.37/22,640.67 = 8,520.55/x
  3. Step 3: Cross multiply
    15,108.37x = 22,640.67 × 8,520.55
  4. Step 4: Simplify right side
    15,108.37x = 192,910,904.17
  5. Step 5: Solve for x
    x = 192,910,904.17/15,108.37
  6. Step 6: Final answer
    x = 12,768.48

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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.