Home / 11,895.12-17,840.66-3,130.11

Finding the Fourth Proportional to 11,895.12, 17,840.66 and 3,130.11

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Solution

The fourth proportional to 11,895.12, 17,840.66 and 3,130.11 is: 4,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,895.12 : 17,840.66 = 3,130.11 : x
  2. Step 2: Convert to fraction form
    11,895.12/17,840.66 = 3,130.11/x
  3. Step 3: Cross multiply
    11,895.12x = 17,840.66 × 3,130.11
  4. Step 4: Simplify right side
    11,895.12x = 55,843,212.62
  5. Step 5: Solve for x
    x = 55,843,212.62/11,895.12
  6. Step 6: Final answer
    x = 4,694.63

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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.