Home / 12,236.31-16,886.21-7,200.54

Finding the Fourth Proportional to 12,236.31, 16,886.21 and 7,200.54

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Solution

The fourth proportional to 12,236.31, 16,886.21 and 7,200.54 is: 9,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.31 : 16,886.21 = 7,200.54 : x
  2. Step 2: Convert to fraction form
    12,236.31/16,886.21 = 7,200.54/x
  3. Step 3: Cross multiply
    12,236.31x = 16,886.21 × 7,200.54
  4. Step 4: Simplify right side
    12,236.31x = 121,589,794.55
  5. Step 5: Solve for x
    x = 121,589,794.55/12,236.31
  6. Step 6: Final answer
    x = 9,936.80

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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.