Home / 11,907.15-17,860.97-3,141.73

Finding the Fourth Proportional to 11,907.15, 17,860.97 and 3,141.73

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Solution

The fourth proportional to 11,907.15, 17,860.97 and 3,141.73 is: 4,712.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.15 : 17,860.97 = 3,141.73 : x
  2. Step 2: Convert to fraction form
    11,907.15/17,860.97 = 3,141.73/x
  3. Step 3: Cross multiply
    11,907.15x = 17,860.97 × 3,141.73
  4. Step 4: Simplify right side
    11,907.15x = 56,114,345.28
  5. Step 5: Solve for x
    x = 56,114,345.28/11,907.15
  6. Step 6: Final answer
    x = 4,712.66

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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.