Home / 12,622.29-18,936.15-3,856.92

Finding the Fourth Proportional to 12,622.29, 18,936.15 and 3,856.92

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Solution

The fourth proportional to 12,622.29, 18,936.15 and 3,856.92 is: 5,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.29 : 18,936.15 = 3,856.92 : x
  2. Step 2: Convert to fraction form
    12,622.29/18,936.15 = 3,856.92/x
  3. Step 3: Cross multiply
    12,622.29x = 18,936.15 × 3,856.92
  4. Step 4: Simplify right side
    12,622.29x = 73,035,215.66
  5. Step 5: Solve for x
    x = 73,035,215.66/12,622.29
  6. Step 6: Final answer
    x = 5,786.21

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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.