Home / 12,380.36-18,556.57-6,144.82

Finding the Fourth Proportional to 12,380.36, 18,556.57 and 6,144.82

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Solution

The fourth proportional to 12,380.36, 18,556.57 and 6,144.82 is: 9,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.36 : 18,556.57 = 6,144.82 : x
  2. Step 2: Convert to fraction form
    12,380.36/18,556.57 = 6,144.82/x
  3. Step 3: Cross multiply
    12,380.36x = 18,556.57 × 6,144.82
  4. Step 4: Simplify right side
    12,380.36x = 114,026,782.47
  5. Step 5: Solve for x
    x = 114,026,782.47/12,380.36
  6. Step 6: Final answer
    x = 9,210.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.