Home / 13,147.30-19,716.08-3,784.16

Finding the Fourth Proportional to 13,147.30, 19,716.08 and 3,784.16

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Solution

The fourth proportional to 13,147.30, 19,716.08 and 3,784.16 is: 5,674.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.30 : 19,716.08 = 3,784.16 : x
  2. Step 2: Convert to fraction form
    13,147.30/19,716.08 = 3,784.16/x
  3. Step 3: Cross multiply
    13,147.30x = 19,716.08 × 3,784.16
  4. Step 4: Simplify right side
    13,147.30x = 74,608,712.17
  5. Step 5: Solve for x
    x = 74,608,712.17/13,147.30
  6. Step 6: Final answer
    x = 5,674.83

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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.