Home / 18,180.20-25,089.36-11,012.48

Finding the Fourth Proportional to 18,180.20, 25,089.36 and 11,012.48

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Solution

The fourth proportional to 18,180.20, 25,089.36 and 11,012.48 is: 15,197.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.20 : 25,089.36 = 11,012.48 : x
  2. Step 2: Convert to fraction form
    18,180.20/25,089.36 = 11,012.48/x
  3. Step 3: Cross multiply
    18,180.20x = 25,089.36 × 11,012.48
  4. Step 4: Simplify right side
    18,180.20x = 276,296,075.21
  5. Step 5: Solve for x
    x = 276,296,075.21/18,180.20
  6. Step 6: Final answer
    x = 15,197.64

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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.