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Finding the Fourth Proportional to 18,177.68, 27,269.68 and 7,090.40

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Solution

The fourth proportional to 18,177.68, 27,269.68 and 7,090.40 is: 10,636.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,177.68 : 27,269.68 = 7,090.40 : x
  2. Step 2: Convert to fraction form
    18,177.68/27,269.68 = 7,090.40/x
  3. Step 3: Cross multiply
    18,177.68x = 27,269.68 × 7,090.40
  4. Step 4: Simplify right side
    18,177.68x = 193,352,939.07
  5. Step 5: Solve for x
    x = 193,352,939.07/18,177.68
  6. Step 6: Final answer
    x = 10,636.83

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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.