Home / 12,393.37-17,102.87-6,728.12

Finding the Fourth Proportional to 12,393.37, 17,102.87 and 6,728.12

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Solution

The fourth proportional to 12,393.37, 17,102.87 and 6,728.12 is: 9,284.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.37 : 17,102.87 = 6,728.12 : x
  2. Step 2: Convert to fraction form
    12,393.37/17,102.87 = 6,728.12/x
  3. Step 3: Cross multiply
    12,393.37x = 17,102.87 × 6,728.12
  4. Step 4: Simplify right side
    12,393.37x = 115,070,161.70
  5. Step 5: Solve for x
    x = 115,070,161.70/12,393.37
  6. Step 6: Final answer
    x = 9,284.82

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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.