Home / 13,426.14-18,525.06-8,120.82

Finding the Fourth Proportional to 13,426.14, 18,525.06 and 8,120.82

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Solution

The fourth proportional to 13,426.14, 18,525.06 and 8,120.82 is: 11,204.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.14 : 18,525.06 = 8,120.82 : x
  2. Step 2: Convert to fraction form
    13,426.14/18,525.06 = 8,120.82/x
  3. Step 3: Cross multiply
    13,426.14x = 18,525.06 × 8,120.82
  4. Step 4: Simplify right side
    13,426.14x = 150,438,677.75
  5. Step 5: Solve for x
    x = 150,438,677.75/13,426.14
  6. Step 6: Final answer
    x = 11,204.91

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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.