Home / 18,410.20-27,617.10-6,720.72

Finding the Fourth Proportional to 18,410.20, 27,617.10 and 6,720.72

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Solution

The fourth proportional to 18,410.20, 27,617.10 and 6,720.72 is: 10,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.20 : 27,617.10 = 6,720.72 : x
  2. Step 2: Convert to fraction form
    18,410.20/27,617.10 = 6,720.72/x
  3. Step 3: Cross multiply
    18,410.20x = 27,617.10 × 6,720.72
  4. Step 4: Simplify right side
    18,410.20x = 185,606,796.31
  5. Step 5: Solve for x
    x = 185,606,796.31/18,410.20
  6. Step 6: Final answer
    x = 10,081.74

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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.