Home / 13,865.74-20,783.62-5,536.60

Finding the Fourth Proportional to 13,865.74, 20,783.62 and 5,536.60

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Solution

The fourth proportional to 13,865.74, 20,783.62 and 5,536.60 is: 8,298.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.74 : 20,783.62 = 5,536.60 : x
  2. Step 2: Convert to fraction form
    13,865.74/20,783.62 = 5,536.60/x
  3. Step 3: Cross multiply
    13,865.74x = 20,783.62 × 5,536.60
  4. Step 4: Simplify right side
    13,865.74x = 115,070,650.68
  5. Step 5: Solve for x
    x = 115,070,650.68/13,865.74
  6. Step 6: Final answer
    x = 8,298.92

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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.