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Finding the Fourth Proportional to 18,176.68, 27,268.18 and 7,089.40

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Solution

The fourth proportional to 18,176.68, 27,268.18 and 7,089.40 is: 10,635.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.68 : 27,268.18 = 7,089.40 : x
  2. Step 2: Convert to fraction form
    18,176.68/27,268.18 = 7,089.40/x
  3. Step 3: Cross multiply
    18,176.68x = 27,268.18 × 7,089.40
  4. Step 4: Simplify right side
    18,176.68x = 193,315,035.29
  5. Step 5: Solve for x
    x = 193,315,035.29/18,176.68
  6. Step 6: Final answer
    x = 10,635.33

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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.