Home / 13,951.44-20,918.96-5,631.73

Finding the Fourth Proportional to 13,951.44, 20,918.96 and 5,631.73

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Solution

The fourth proportional to 13,951.44, 20,918.96 and 5,631.73 is: 8,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.44 : 20,918.96 = 5,631.73 : x
  2. Step 2: Convert to fraction form
    13,951.44/20,918.96 = 5,631.73/x
  3. Step 3: Cross multiply
    13,951.44x = 20,918.96 × 5,631.73
  4. Step 4: Simplify right side
    13,951.44x = 117,809,875.26
  5. Step 5: Solve for x
    x = 117,809,875.26/13,951.44
  6. Step 6: Final answer
    x = 8,444.28

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1.5x scale

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.