Home / 13,167.68-18,170.42-7,199.44

Finding the Fourth Proportional to 13,167.68, 18,170.42 and 7,199.44

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Solution

The fourth proportional to 13,167.68, 18,170.42 and 7,199.44 is: 9,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.68 : 18,170.42 = 7,199.44 : x
  2. Step 2: Convert to fraction form
    13,167.68/18,170.42 = 7,199.44/x
  3. Step 3: Cross multiply
    13,167.68x = 18,170.42 × 7,199.44
  4. Step 4: Simplify right side
    13,167.68x = 130,816,848.56
  5. Step 5: Solve for x
    x = 130,816,848.56/13,167.68
  6. Step 6: Final answer
    x = 9,934.69

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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.