Home / 13,067.10-18,024.66-7,760.88

Finding the Fourth Proportional to 13,067.10, 18,024.66 and 7,760.88

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Solution

The fourth proportional to 13,067.10, 18,024.66 and 7,760.88 is: 10,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.10 : 18,024.66 = 7,760.88 : x
  2. Step 2: Convert to fraction form
    13,067.10/18,024.66 = 7,760.88/x
  3. Step 3: Cross multiply
    13,067.10x = 18,024.66 × 7,760.88
  4. Step 4: Simplify right side
    13,067.10x = 139,887,223.30
  5. Step 5: Solve for x
    x = 139,887,223.30/13,067.10
  6. Step 6: Final answer
    x = 10,705.30

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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.