Home / 13,320.64-19,982.85-6,201.44

Finding the Fourth Proportional to 13,320.64, 19,982.85 and 6,201.44

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Solution

The fourth proportional to 13,320.64, 19,982.85 and 6,201.44 is: 9,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.64 : 19,982.85 = 6,201.44 : x
  2. Step 2: Convert to fraction form
    13,320.64/19,982.85 = 6,201.44/x
  3. Step 3: Cross multiply
    13,320.64x = 19,982.85 × 6,201.44
  4. Step 4: Simplify right side
    13,320.64x = 123,922,544.36
  5. Step 5: Solve for x
    x = 123,922,544.36/13,320.64
  6. Step 6: Final answer
    x = 9,303.05

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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.