Home / 11,328.71-16,991.74-3,009.37

Finding the Fourth Proportional to 11,328.71, 16,991.74 and 3,009.37

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Solution

The fourth proportional to 11,328.71, 16,991.74 and 3,009.37 is: 4,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.71 : 16,991.74 = 3,009.37 : x
  2. Step 2: Convert to fraction form
    11,328.71/16,991.74 = 3,009.37/x
  3. Step 3: Cross multiply
    11,328.71x = 16,991.74 × 3,009.37
  4. Step 4: Simplify right side
    11,328.71x = 51,134,382.60
  5. Step 5: Solve for x
    x = 51,134,382.60/11,328.71
  6. Step 6: Final answer
    x = 4,513.70

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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.