Home / 18,629.38-27,938.14-6,147.08

Finding the Fourth Proportional to 18,629.38, 27,938.14 and 6,147.08

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Solution

The fourth proportional to 18,629.38, 27,938.14 and 6,147.08 is: 9,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.38 : 27,938.14 = 6,147.08 : x
  2. Step 2: Convert to fraction form
    18,629.38/27,938.14 = 6,147.08/x
  3. Step 3: Cross multiply
    18,629.38x = 27,938.14 × 6,147.08
  4. Step 4: Simplify right side
    18,629.38x = 171,737,981.63
  5. Step 5: Solve for x
    x = 171,737,981.63/18,629.38
  6. Step 6: Final answer
    x = 9,218.66

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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.