Home / 9,728.37-13,420.35-6,192.72

Finding the Fourth Proportional to 9,728.37, 13,420.35 and 6,192.72

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Solution

The fourth proportional to 9,728.37, 13,420.35 and 6,192.72 is: 8,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,728.37 : 13,420.35 = 6,192.72 : x
  2. Step 2: Convert to fraction form
    9,728.37/13,420.35 = 6,192.72/x
  3. Step 3: Cross multiply
    9,728.37x = 13,420.35 × 6,192.72
  4. Step 4: Simplify right side
    9,728.37x = 83,108,469.85
  5. Step 5: Solve for x
    x = 83,108,469.85/9,728.37
  6. Step 6: Final answer
    x = 8,542.90

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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.