Home / 12,184.12-18,274.53-3,419.71

Finding the Fourth Proportional to 12,184.12, 18,274.53 and 3,419.71

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Solution

The fourth proportional to 12,184.12, 18,274.53 and 3,419.71 is: 5,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.12 : 18,274.53 = 3,419.71 : x
  2. Step 2: Convert to fraction form
    12,184.12/18,274.53 = 3,419.71/x
  3. Step 3: Cross multiply
    12,184.12x = 18,274.53 × 3,419.71
  4. Step 4: Simplify right side
    12,184.12x = 62,493,592.99
  5. Step 5: Solve for x
    x = 62,493,592.99/12,184.12
  6. Step 6: Final answer
    x = 5,129.10

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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.