Home / 13,667.32-20,485.05-6,272.56

Finding the Fourth Proportional to 13,667.32, 20,485.05 and 6,272.56

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Solution

The fourth proportional to 13,667.32, 20,485.05 and 6,272.56 is: 9,401.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.32 : 20,485.05 = 6,272.56 : x
  2. Step 2: Convert to fraction form
    13,667.32/20,485.05 = 6,272.56/x
  3. Step 3: Cross multiply
    13,667.32x = 20,485.05 × 6,272.56
  4. Step 4: Simplify right side
    13,667.32x = 128,493,705.23
  5. Step 5: Solve for x
    x = 128,493,705.23/13,667.32
  6. Step 6: Final answer
    x = 9,401.53

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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.