Home / 11,322.36-16,980.30-3,924.90

Finding the Fourth Proportional to 11,322.36, 16,980.30 and 3,924.90

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Solution

The fourth proportional to 11,322.36, 16,980.30 and 3,924.90 is: 5,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.36 : 16,980.30 = 3,924.90 : x
  2. Step 2: Convert to fraction form
    11,322.36/16,980.30 = 3,924.90/x
  3. Step 3: Cross multiply
    11,322.36x = 16,980.30 × 3,924.90
  4. Step 4: Simplify right side
    11,322.36x = 66,645,979.47
  5. Step 5: Solve for x
    x = 66,645,979.47/11,322.36
  6. Step 6: Final answer
    x = 5,886.23

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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.