Home / 13,115.46-19,658.61-5,320.02

Finding the Fourth Proportional to 13,115.46, 19,658.61 and 5,320.02

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Solution

The fourth proportional to 13,115.46, 19,658.61 and 5,320.02 is: 7,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.46 : 19,658.61 = 5,320.02 : x
  2. Step 2: Convert to fraction form
    13,115.46/19,658.61 = 5,320.02/x
  3. Step 3: Cross multiply
    13,115.46x = 19,658.61 × 5,320.02
  4. Step 4: Simplify right side
    13,115.46x = 104,584,198.37
  5. Step 5: Solve for x
    x = 104,584,198.37/13,115.46
  6. Step 6: Final answer
    x = 7,974.12

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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.