Home / 18,305.43-27,458.15-5,156.09

Finding the Fourth Proportional to 18,305.43, 27,458.15 and 5,156.09

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Solution

The fourth proportional to 18,305.43, 27,458.15 and 5,156.09 is: 7,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.43 : 27,458.15 = 5,156.09 : x
  2. Step 2: Convert to fraction form
    18,305.43/27,458.15 = 5,156.09/x
  3. Step 3: Cross multiply
    18,305.43x = 27,458.15 × 5,156.09
  4. Step 4: Simplify right side
    18,305.43x = 141,576,666.85
  5. Step 5: Solve for x
    x = 141,576,666.85/18,305.43
  6. Step 6: Final answer
    x = 7,734.14

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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.