Home / 13,951.92-21,028.20-12,027.36

Finding the Fourth Proportional to 13,951.92, 21,028.20 and 12,027.36

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Solution

The fourth proportional to 13,951.92, 21,028.20 and 12,027.36 is: 18,127.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.92 : 21,028.20 = 12,027.36 : x
  2. Step 2: Convert to fraction form
    13,951.92/21,028.20 = 12,027.36/x
  3. Step 3: Cross multiply
    13,951.92x = 21,028.20 × 12,027.36
  4. Step 4: Simplify right side
    13,951.92x = 252,913,731.55
  5. Step 5: Solve for x
    x = 252,913,731.55/13,951.92
  6. Step 6: Final answer
    x = 18,127.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.