Home / 11,323.86-16,979.25-4,390.26

Finding the Fourth Proportional to 11,323.86, 16,979.25 and 4,390.26

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Solution

The fourth proportional to 11,323.86, 16,979.25 and 4,390.26 is: 6,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.86 : 16,979.25 = 4,390.26 : x
  2. Step 2: Convert to fraction form
    11,323.86/16,979.25 = 4,390.26/x
  3. Step 3: Cross multiply
    11,323.86x = 16,979.25 × 4,390.26
  4. Step 4: Simplify right side
    11,323.86x = 74,543,322.11
  5. Step 5: Solve for x
    x = 74,543,322.11/11,323.86
  6. Step 6: Final answer
    x = 6,582.85

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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.