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Finding the Fourth Proportional to 18,173.68, 27,263.68 and 7,086.40

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Solution

The fourth proportional to 18,173.68, 27,263.68 and 7,086.40 is: 10,630.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173.68 : 27,263.68 = 7,086.40 : x
  2. Step 2: Convert to fraction form
    18,173.68/27,263.68 = 7,086.40/x
  3. Step 3: Cross multiply
    18,173.68x = 27,263.68 × 7,086.40
  4. Step 4: Simplify right side
    18,173.68x = 193,201,341.95
  5. Step 5: Solve for x
    x = 193,201,341.95/18,173.68
  6. Step 6: Final answer
    x = 10,630.83

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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.