Home / 13,968.92-20,947.80-5,647.34

Finding the Fourth Proportional to 13,968.92, 20,947.80 and 5,647.34

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Solution

The fourth proportional to 13,968.92, 20,947.80 and 5,647.34 is: 8,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.92 : 20,947.80 = 5,647.34 : x
  2. Step 2: Convert to fraction form
    13,968.92/20,947.80 = 5,647.34/x
  3. Step 3: Cross multiply
    13,968.92x = 20,947.80 × 5,647.34
  4. Step 4: Simplify right side
    13,968.92x = 118,299,348.85
  5. Step 5: Solve for x
    x = 118,299,348.85/13,968.92
  6. Step 6: Final answer
    x = 8,468.75

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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.