Home / 13,176.66-18,174.84-8,069.79

Finding the Fourth Proportional to 13,176.66, 18,174.84 and 8,069.79

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Solution

The fourth proportional to 13,176.66, 18,174.84 and 8,069.79 is: 11,130.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.66 : 18,174.84 = 8,069.79 : x
  2. Step 2: Convert to fraction form
    13,176.66/18,174.84 = 8,069.79/x
  3. Step 3: Cross multiply
    13,176.66x = 18,174.84 × 8,069.79
  4. Step 4: Simplify right side
    13,176.66x = 146,667,179.98
  5. Step 5: Solve for x
    x = 146,667,179.98/13,176.66
  6. Step 6: Final answer
    x = 11,130.83

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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.