Home / 11,322.06-16,979.85-3,528.78

Finding the Fourth Proportional to 11,322.06, 16,979.85 and 3,528.78

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Solution

The fourth proportional to 11,322.06, 16,979.85 and 3,528.78 is: 5,292.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.06 : 16,979.85 = 3,528.78 : x
  2. Step 2: Convert to fraction form
    11,322.06/16,979.85 = 3,528.78/x
  3. Step 3: Cross multiply
    11,322.06x = 16,979.85 × 3,528.78
  4. Step 4: Simplify right side
    11,322.06x = 59,918,155.08
  5. Step 5: Solve for x
    x = 59,918,155.08/11,322.06
  6. Step 6: Final answer
    x = 5,292.16

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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.