Home / 12,483.60-18,723.35-4,163.68

Finding the Fourth Proportional to 12,483.60, 18,723.35 and 4,163.68

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Solution

The fourth proportional to 12,483.60, 18,723.35 and 4,163.68 is: 6,244.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483.60 : 18,723.35 = 4,163.68 : x
  2. Step 2: Convert to fraction form
    12,483.60/18,723.35 = 4,163.68/x
  3. Step 3: Cross multiply
    12,483.60x = 18,723.35 × 4,163.68
  4. Step 4: Simplify right side
    12,483.60x = 77,958,037.93
  5. Step 5: Solve for x
    x = 77,958,037.93/12,483.60
  6. Step 6: Final answer
    x = 6,244.84

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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.