Home / 13,761.56-18,979.26-9,284.60

Finding the Fourth Proportional to 13,761.56, 18,979.26 and 9,284.60

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Solution

The fourth proportional to 13,761.56, 18,979.26 and 9,284.60 is: 12,804.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.56 : 18,979.26 = 9,284.60 : x
  2. Step 2: Convert to fraction form
    13,761.56/18,979.26 = 9,284.60/x
  3. Step 3: Cross multiply
    13,761.56x = 18,979.26 × 9,284.60
  4. Step 4: Simplify right side
    13,761.56x = 176,214,837.40
  5. Step 5: Solve for x
    x = 176,214,837.40/13,761.56
  6. Step 6: Final answer
    x = 12,804.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.