Home / 13,935.69-20,892.60-5,165.82

Finding the Fourth Proportional to 13,935.69, 20,892.60 and 5,165.82

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Solution

The fourth proportional to 13,935.69, 20,892.60 and 5,165.82 is: 7,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.69 : 20,892.60 = 5,165.82 : x
  2. Step 2: Convert to fraction form
    13,935.69/20,892.60 = 5,165.82/x
  3. Step 3: Cross multiply
    13,935.69x = 20,892.60 × 5,165.82
  4. Step 4: Simplify right side
    13,935.69x = 107,927,410.93
  5. Step 5: Solve for x
    x = 107,927,410.93/13,935.69
  6. Step 6: Final answer
    x = 7,744.68

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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.