Home / 13,149.02-18,144.94-7,180.60

Finding the Fourth Proportional to 13,149.02, 18,144.94 and 7,180.60

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Solution

The fourth proportional to 13,149.02, 18,144.94 and 7,180.60 is: 9,908.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.02 : 18,144.94 = 7,180.60 : x
  2. Step 2: Convert to fraction form
    13,149.02/18,144.94 = 7,180.60/x
  3. Step 3: Cross multiply
    13,149.02x = 18,144.94 × 7,180.60
  4. Step 4: Simplify right side
    13,149.02x = 130,291,556.16
  5. Step 5: Solve for x
    x = 130,291,556.16/13,149.02
  6. Step 6: Final answer
    x = 9,908.84

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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.