Home / 13,167.04-18,170.31-7,198.57

Finding the Fourth Proportional to 13,167.04, 18,170.31 and 7,198.57

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Solution

The fourth proportional to 13,167.04, 18,170.31 and 7,198.57 is: 9,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.04 : 18,170.31 = 7,198.57 : x
  2. Step 2: Convert to fraction form
    13,167.04/18,170.31 = 7,198.57/x
  3. Step 3: Cross multiply
    13,167.04x = 18,170.31 × 7,198.57
  4. Step 4: Simplify right side
    13,167.04x = 130,800,248.46
  5. Step 5: Solve for x
    x = 130,800,248.46/13,167.04
  6. Step 6: Final answer
    x = 9,933.91

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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.