Home / 12,415.67-17,122.27-9,236.92

Finding the Fourth Proportional to 12,415.67, 17,122.27 and 9,236.92

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Solution

The fourth proportional to 12,415.67, 17,122.27 and 9,236.92 is: 12,738.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.67 : 17,122.27 = 9,236.92 : x
  2. Step 2: Convert to fraction form
    12,415.67/17,122.27 = 9,236.92/x
  3. Step 3: Cross multiply
    12,415.67x = 17,122.27 × 9,236.92
  4. Step 4: Simplify right side
    12,415.67x = 158,157,019.20
  5. Step 5: Solve for x
    x = 158,157,019.20/12,415.67
  6. Step 6: Final answer
    x = 12,738.51

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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.