Home / 18,087.90-27,139.66-9,766.26

Finding the Fourth Proportional to 18,087.90, 27,139.66 and 9,766.26

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Solution

The fourth proportional to 18,087.90, 27,139.66 and 9,766.26 is: 14,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.90 : 27,139.66 = 9,766.26 : x
  2. Step 2: Convert to fraction form
    18,087.90/27,139.66 = 9,766.26/x
  3. Step 3: Cross multiply
    18,087.90x = 27,139.66 × 9,766.26
  4. Step 4: Simplify right side
    18,087.90x = 265,052,975.87
  5. Step 5: Solve for x
    x = 265,052,975.87/18,087.90
  6. Step 6: Final answer
    x = 14,653.61

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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.