Home / 13,756.80-20,627.44-4,394.64

Finding the Fourth Proportional to 13,756.80, 20,627.44 and 4,394.64

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Solution

The fourth proportional to 13,756.80, 20,627.44 and 4,394.64 is: 6,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.80 : 20,627.44 = 4,394.64 : x
  2. Step 2: Convert to fraction form
    13,756.80/20,627.44 = 4,394.64/x
  3. Step 3: Cross multiply
    13,756.80x = 20,627.44 × 4,394.64
  4. Step 4: Simplify right side
    13,756.80x = 90,650,172.92
  5. Step 5: Solve for x
    x = 90,650,172.92/13,756.80
  6. Step 6: Final answer
    x = 6,589.48

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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.