Home / 13,162.87-19,749.79-5,772.63

Finding the Fourth Proportional to 13,162.87, 19,749.79 and 5,772.63

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Solution

The fourth proportional to 13,162.87, 19,749.79 and 5,772.63 is: 8,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.87 : 19,749.79 = 5,772.63 : x
  2. Step 2: Convert to fraction form
    13,162.87/19,749.79 = 5,772.63/x
  3. Step 3: Cross multiply
    13,162.87x = 19,749.79 × 5,772.63
  4. Step 4: Simplify right side
    13,162.87x = 114,008,311.53
  5. Step 5: Solve for x
    x = 114,008,311.53/13,162.87
  6. Step 6: Final answer
    x = 8,661.36

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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.