Home / 12,834.78-19,246.41-5,905.50

Finding the Fourth Proportional to 12,834.78, 19,246.41 and 5,905.50

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Solution

The fourth proportional to 12,834.78, 19,246.41 and 5,905.50 is: 8,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.78 : 19,246.41 = 5,905.50 : x
  2. Step 2: Convert to fraction form
    12,834.78/19,246.41 = 5,905.50/x
  3. Step 3: Cross multiply
    12,834.78x = 19,246.41 × 5,905.50
  4. Step 4: Simplify right side
    12,834.78x = 113,659,674.26
  5. Step 5: Solve for x
    x = 113,659,674.26/12,834.78
  6. Step 6: Final answer
    x = 8,855.60

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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.