Home / 18,108.39-27,141.57-6,856.58

Finding the Fourth Proportional to 18,108.39, 27,141.57 and 6,856.58

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Solution

The fourth proportional to 18,108.39, 27,141.57 and 6,856.58 is: 10,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.39 : 27,141.57 = 6,856.58 : x
  2. Step 2: Convert to fraction form
    18,108.39/27,141.57 = 6,856.58/x
  3. Step 3: Cross multiply
    18,108.39x = 27,141.57 × 6,856.58
  4. Step 4: Simplify right side
    18,108.39x = 186,098,176.04
  5. Step 5: Solve for x
    x = 186,098,176.04/18,108.39
  6. Step 6: Final answer
    x = 10,276.90

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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.