Home / 12,410.85-18,616.28-8,729.56

Finding the Fourth Proportional to 12,410.85, 18,616.28 and 8,729.56

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Solution

The fourth proportional to 12,410.85, 18,616.28 and 8,729.56 is: 13,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,410.85 : 18,616.28 = 8,729.56 : x
  2. Step 2: Convert to fraction form
    12,410.85/18,616.28 = 8,729.56/x
  3. Step 3: Cross multiply
    12,410.85x = 18,616.28 × 8,729.56
  4. Step 4: Simplify right side
    12,410.85x = 162,511,857.25
  5. Step 5: Solve for x
    x = 162,511,857.25/12,410.85
  6. Step 6: Final answer
    x = 13,094.33

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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.