Home / 13,936.92-19,236.63-8,628.72

Finding the Fourth Proportional to 13,936.92, 19,236.63 and 8,628.72

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Solution

The fourth proportional to 13,936.92, 19,236.63 and 8,628.72 is: 11,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.92 : 19,236.63 = 8,628.72 : x
  2. Step 2: Convert to fraction form
    13,936.92/19,236.63 = 8,628.72/x
  3. Step 3: Cross multiply
    13,936.92x = 19,236.63 × 8,628.72
  4. Step 4: Simplify right side
    13,936.92x = 165,987,494.01
  5. Step 5: Solve for x
    x = 165,987,494.01/13,936.92
  6. Step 6: Final answer
    x = 11,909.91

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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.