Home / 12,650.32-18,976.04-3,885.60

Finding the Fourth Proportional to 12,650.32, 18,976.04 and 3,885.60

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Solution

The fourth proportional to 12,650.32, 18,976.04 and 3,885.60 is: 5,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.32 : 18,976.04 = 3,885.60 : x
  2. Step 2: Convert to fraction form
    12,650.32/18,976.04 = 3,885.60/x
  3. Step 3: Cross multiply
    12,650.32x = 18,976.04 × 3,885.60
  4. Step 4: Simplify right side
    12,650.32x = 73,733,301.02
  5. Step 5: Solve for x
    x = 73,733,301.02/12,650.32
  6. Step 6: Final answer
    x = 5,828.57

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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.