Home / 12,604.64-18,909.78-3,840.24

Finding the Fourth Proportional to 12,604.64, 18,909.78 and 3,840.24

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Solution

The fourth proportional to 12,604.64, 18,909.78 and 3,840.24 is: 5,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.64 : 18,909.78 = 3,840.24 : x
  2. Step 2: Convert to fraction form
    12,604.64/18,909.78 = 3,840.24/x
  3. Step 3: Cross multiply
    12,604.64x = 18,909.78 × 3,840.24
  4. Step 4: Simplify right side
    12,604.64x = 72,618,093.55
  5. Step 5: Solve for x
    x = 72,618,093.55/12,604.64
  6. Step 6: Final answer
    x = 5,761.22

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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.