Home / 12,318.60-18,480.63-3,552.83

Finding the Fourth Proportional to 12,318.60, 18,480.63 and 3,552.83

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Solution

The fourth proportional to 12,318.60, 18,480.63 and 3,552.83 is: 5,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.60 : 18,480.63 = 3,552.83 : x
  2. Step 2: Convert to fraction form
    12,318.60/18,480.63 = 3,552.83/x
  3. Step 3: Cross multiply
    12,318.60x = 18,480.63 × 3,552.83
  4. Step 4: Simplify right side
    12,318.60x = 65,658,536.68
  5. Step 5: Solve for x
    x = 65,658,536.68/12,318.60
  6. Step 6: Final answer
    x = 5,330.03

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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.