Home / 11,948.64-17,918.70-4,928.36

Finding the Fourth Proportional to 11,948.64, 17,918.70 and 4,928.36

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Solution

The fourth proportional to 11,948.64, 17,918.70 and 4,928.36 is: 7,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.64 : 17,918.70 = 4,928.36 : x
  2. Step 2: Convert to fraction form
    11,948.64/17,918.70 = 4,928.36/x
  3. Step 3: Cross multiply
    11,948.64x = 17,918.70 × 4,928.36
  4. Step 4: Simplify right side
    11,948.64x = 88,309,804.33
  5. Step 5: Solve for x
    x = 88,309,804.33/11,948.64
  6. Step 6: Final answer
    x = 7,390.78

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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.