Home / 12,184.56-18,277.20-3,419.28

Finding the Fourth Proportional to 12,184.56, 18,277.20 and 3,419.28

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Solution

The fourth proportional to 12,184.56, 18,277.20 and 3,419.28 is: 5,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.56 : 18,277.20 = 3,419.28 : x
  2. Step 2: Convert to fraction form
    12,184.56/18,277.20 = 3,419.28/x
  3. Step 3: Cross multiply
    12,184.56x = 18,277.20 × 3,419.28
  4. Step 4: Simplify right side
    12,184.56x = 62,494,864.42
  5. Step 5: Solve for x
    x = 62,494,864.42/12,184.56
  6. Step 6: Final answer
    x = 5,129.02

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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.