Home / 18,288.10-27,435.15-6,438.82

Finding the Fourth Proportional to 18,288.10, 27,435.15 and 6,438.82

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Solution

The fourth proportional to 18,288.10, 27,435.15 and 6,438.82 is: 9,659.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.10 : 27,435.15 = 6,438.82 : x
  2. Step 2: Convert to fraction form
    18,288.10/27,435.15 = 6,438.82/x
  3. Step 3: Cross multiply
    18,288.10x = 27,435.15 × 6,438.82
  4. Step 4: Simplify right side
    18,288.10x = 176,649,992.52
  5. Step 5: Solve for x
    x = 176,649,992.52/18,288.10
  6. Step 6: Final answer
    x = 9,659.29

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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.