Home / 8,146.08-11,238.84-5,161.48

Finding the Fourth Proportional to 8,146.08, 11,238.84 and 5,161.48

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Solution

The fourth proportional to 8,146.08, 11,238.84 and 5,161.48 is: 7,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.08 : 11,238.84 = 5,161.48 : x
  2. Step 2: Convert to fraction form
    8,146.08/11,238.84 = 5,161.48/x
  3. Step 3: Cross multiply
    8,146.08x = 11,238.84 × 5,161.48
  4. Step 4: Simplify right side
    8,146.08x = 58,009,047.88
  5. Step 5: Solve for x
    x = 58,009,047.88/8,146.08
  6. Step 6: Final answer
    x = 7,121.10

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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.