Home / 13,169.05-18,173.10-7,200.57

Finding the Fourth Proportional to 13,169.05, 18,173.10 and 7,200.57

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Solution

The fourth proportional to 13,169.05, 18,173.10 and 7,200.57 is: 9,936.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.05 : 18,173.10 = 7,200.57 : x
  2. Step 2: Convert to fraction form
    13,169.05/18,173.10 = 7,200.57/x
  3. Step 3: Cross multiply
    13,169.05x = 18,173.10 × 7,200.57
  4. Step 4: Simplify right side
    13,169.05x = 130,856,678.67
  5. Step 5: Solve for x
    x = 130,856,678.67/13,169.05
  6. Step 6: Final answer
    x = 9,936.68

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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.