Home / 13,169.04-18,173.25-7,200.70

Finding the Fourth Proportional to 13,169.04, 18,173.25 and 7,200.70

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Solution

The fourth proportional to 13,169.04, 18,173.25 and 7,200.70 is: 9,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.04 : 18,173.25 = 7,200.70 : x
  2. Step 2: Convert to fraction form
    13,169.04/18,173.25 = 7,200.70/x
  3. Step 3: Cross multiply
    13,169.04x = 18,173.25 × 7,200.70
  4. Step 4: Simplify right side
    13,169.04x = 130,860,121.28
  5. Step 5: Solve for x
    x = 130,860,121.28/13,169.04
  6. Step 6: Final answer
    x = 9,936.95

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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.