Home / 12,822.70-19,236.60-5,427.10

Finding the Fourth Proportional to 12,822.70, 19,236.60 and 5,427.10

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Solution

The fourth proportional to 12,822.70, 19,236.60 and 5,427.10 is: 8,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822.70 : 19,236.60 = 5,427.10 : x
  2. Step 2: Convert to fraction form
    12,822.70/19,236.60 = 5,427.10/x
  3. Step 3: Cross multiply
    12,822.70x = 19,236.60 × 5,427.10
  4. Step 4: Simplify right side
    12,822.70x = 104,398,951.86
  5. Step 5: Solve for x
    x = 104,398,951.86/12,822.70
  6. Step 6: Final answer
    x = 8,141.73

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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.