Home / 12,620.84-18,931.56-6,039.79

Finding the Fourth Proportional to 12,620.84, 18,931.56 and 6,039.79

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Solution

The fourth proportional to 12,620.84, 18,931.56 and 6,039.79 is: 9,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620.84 : 18,931.56 = 6,039.79 : x
  2. Step 2: Convert to fraction form
    12,620.84/18,931.56 = 6,039.79/x
  3. Step 3: Cross multiply
    12,620.84x = 18,931.56 × 6,039.79
  4. Step 4: Simplify right side
    12,620.84x = 114,342,599.44
  5. Step 5: Solve for x
    x = 114,342,599.44/12,620.84
  6. Step 6: Final answer
    x = 9,059.83

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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.