Home / 13,936.42-19,235.94-8,628.22

Finding the Fourth Proportional to 13,936.42, 19,235.94 and 8,628.22

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Solution

The fourth proportional to 13,936.42, 19,235.94 and 8,628.22 is: 11,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.42 : 19,235.94 = 8,628.22 : x
  2. Step 2: Convert to fraction form
    13,936.42/19,235.94 = 8,628.22/x
  3. Step 3: Cross multiply
    13,936.42x = 19,235.94 × 8,628.22
  4. Step 4: Simplify right side
    13,936.42x = 165,971,826.05
  5. Step 5: Solve for x
    x = 165,971,826.05/13,936.42
  6. Step 6: Final answer
    x = 11,909.22

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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.