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Finding the Fourth Proportional to 13,318.83, 19,936.94 and 7,063.40

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Solution

The fourth proportional to 13,318.83, 19,936.94 and 7,063.40 is: 10,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.83 : 19,936.94 = 7,063.40 : x
  2. Step 2: Convert to fraction form
    13,318.83/19,936.94 = 7,063.40/x
  3. Step 3: Cross multiply
    13,318.83x = 19,936.94 × 7,063.40
  4. Step 4: Simplify right side
    13,318.83x = 140,822,596.52
  5. Step 5: Solve for x
    x = 140,822,596.52/13,318.83
  6. Step 6: Final answer
    x = 10,573.20

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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.