Home / 13,166.04-18,169.11-7,197.70

Finding the Fourth Proportional to 13,166.04, 18,169.11 and 7,197.70

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Solution

The fourth proportional to 13,166.04, 18,169.11 and 7,197.70 is: 9,932.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.04 : 18,169.11 = 7,197.70 : x
  2. Step 2: Convert to fraction form
    13,166.04/18,169.11 = 7,197.70/x
  3. Step 3: Cross multiply
    13,166.04x = 18,169.11 × 7,197.70
  4. Step 4: Simplify right side
    13,166.04x = 130,775,766.14
  5. Step 5: Solve for x
    x = 130,775,766.14/13,166.04
  6. Step 6: Final answer
    x = 9,932.81

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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.