Home / 18,138.18-27,204.19-8,275.14

Finding the Fourth Proportional to 18,138.18, 27,204.19 and 8,275.14

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Solution

The fourth proportional to 18,138.18, 27,204.19 and 8,275.14 is: 12,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.18 : 27,204.19 = 8,275.14 : x
  2. Step 2: Convert to fraction form
    18,138.18/27,204.19 = 8,275.14/x
  3. Step 3: Cross multiply
    18,138.18x = 27,204.19 × 8,275.14
  4. Step 4: Simplify right side
    18,138.18x = 225,118,480.84
  5. Step 5: Solve for x
    x = 225,118,480.84/18,138.18
  6. Step 6: Final answer
    x = 12,411.30

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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.