Home / 18,405.63-27,612.09-6,717.33

Finding the Fourth Proportional to 18,405.63, 27,612.09 and 6,717.33

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Solution

The fourth proportional to 18,405.63, 27,612.09 and 6,717.33 is: 10,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.63 : 27,612.09 = 6,717.33 : x
  2. Step 2: Convert to fraction form
    18,405.63/27,612.09 = 6,717.33/x
  3. Step 3: Cross multiply
    18,405.63x = 27,612.09 × 6,717.33
  4. Step 4: Simplify right side
    18,405.63x = 185,479,520.52
  5. Step 5: Solve for x
    x = 185,479,520.52/18,405.63
  6. Step 6: Final answer
    x = 10,077.33

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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.