Home / 18,507.38-27,760.89-5,359.64

Finding the Fourth Proportional to 18,507.38, 27,760.89 and 5,359.64

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Solution

The fourth proportional to 18,507.38, 27,760.89 and 5,359.64 is: 8,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.38 : 27,760.89 = 5,359.64 : x
  2. Step 2: Convert to fraction form
    18,507.38/27,760.89 = 5,359.64/x
  3. Step 3: Cross multiply
    18,507.38x = 27,760.89 × 5,359.64
  4. Step 4: Simplify right side
    18,507.38x = 148,788,376.48
  5. Step 5: Solve for x
    x = 148,788,376.48/18,507.38
  6. Step 6: Final answer
    x = 8,039.41

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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.