Home / 12,495.11-18,742.66-3,261.11

Finding the Fourth Proportional to 12,495.11, 18,742.66 and 3,261.11

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Solution

The fourth proportional to 12,495.11, 18,742.66 and 3,261.11 is: 4,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.11 : 18,742.66 = 3,261.11 : x
  2. Step 2: Convert to fraction form
    12,495.11/18,742.66 = 3,261.11/x
  3. Step 3: Cross multiply
    12,495.11x = 18,742.66 × 3,261.11
  4. Step 4: Simplify right side
    12,495.11x = 61,121,875.95
  5. Step 5: Solve for x
    x = 61,121,875.95/12,495.11
  6. Step 6: Final answer
    x = 4,891.66

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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.