Home / 12,184.30-18,276.45-3,419.98

Finding the Fourth Proportional to 12,184.30, 18,276.45 and 3,419.98

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Solution

The fourth proportional to 12,184.30, 18,276.45 and 3,419.98 is: 5,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.30 : 18,276.45 = 3,419.98 : x
  2. Step 2: Convert to fraction form
    12,184.30/18,276.45 = 3,419.98/x
  3. Step 3: Cross multiply
    12,184.30x = 18,276.45 × 3,419.98
  4. Step 4: Simplify right side
    12,184.30x = 62,505,093.47
  5. Step 5: Solve for x
    x = 62,505,093.47/12,184.30
  6. Step 6: Final answer
    x = 5,129.97

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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.