Home / 13,174.71-18,180.99-7,206.42

Finding the Fourth Proportional to 13,174.71, 18,180.99 and 7,206.42

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Solution

The fourth proportional to 13,174.71, 18,180.99 and 7,206.42 is: 9,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.71 : 18,180.99 = 7,206.42 : x
  2. Step 2: Convert to fraction form
    13,174.71/18,180.99 = 7,206.42/x
  3. Step 3: Cross multiply
    13,174.71x = 18,180.99 × 7,206.42
  4. Step 4: Simplify right side
    13,174.71x = 131,019,849.96
  5. Step 5: Solve for x
    x = 131,019,849.96/13,174.71
  6. Step 6: Final answer
    x = 9,944.80

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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.