Home / 18,107.86-27,158.54-4,959.12

Finding the Fourth Proportional to 18,107.86, 27,158.54 and 4,959.12

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Solution

The fourth proportional to 18,107.86, 27,158.54 and 4,959.12 is: 7,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.86 : 27,158.54 = 4,959.12 : x
  2. Step 2: Convert to fraction form
    18,107.86/27,158.54 = 4,959.12/x
  3. Step 3: Cross multiply
    18,107.86x = 27,158.54 × 4,959.12
  4. Step 4: Simplify right side
    18,107.86x = 134,682,458.88
  5. Step 5: Solve for x
    x = 134,682,458.88/18,107.86
  6. Step 6: Final answer
    x = 7,437.79

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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.