Home / 18,089.19-27,119.21-6,990.17

Finding the Fourth Proportional to 18,089.19, 27,119.21 and 6,990.17

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Solution

The fourth proportional to 18,089.19, 27,119.21 and 6,990.17 is: 10,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.19 : 27,119.21 = 6,990.17 : x
  2. Step 2: Convert to fraction form
    18,089.19/27,119.21 = 6,990.17/x
  3. Step 3: Cross multiply
    18,089.19x = 27,119.21 × 6,990.17
  4. Step 4: Simplify right side
    18,089.19x = 189,567,717.62
  5. Step 5: Solve for x
    x = 189,567,717.62/18,089.19
  6. Step 6: Final answer
    x = 10,479.61

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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.