Home / 13,169.44-18,173.71-7,201.15

Finding the Fourth Proportional to 13,169.44, 18,173.71 and 7,201.15

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Solution

The fourth proportional to 13,169.44, 18,173.71 and 7,201.15 is: 9,937.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.44 : 18,173.71 = 7,201.15 : x
  2. Step 2: Convert to fraction form
    13,169.44/18,173.71 = 7,201.15/x
  3. Step 3: Cross multiply
    13,169.44x = 18,173.71 × 7,201.15
  4. Step 4: Simplify right side
    13,169.44x = 130,871,530.33
  5. Step 5: Solve for x
    x = 130,871,530.33/13,169.44
  6. Step 6: Final answer
    x = 9,937.52

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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.