Home / 12,261.43-18,393.23-3,942.19

Finding the Fourth Proportional to 12,261.43, 18,393.23 and 3,942.19

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Solution

The fourth proportional to 12,261.43, 18,393.23 and 3,942.19 is: 5,913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.43 : 18,393.23 = 3,942.19 : x
  2. Step 2: Convert to fraction form
    12,261.43/18,393.23 = 3,942.19/x
  3. Step 3: Cross multiply
    12,261.43x = 18,393.23 × 3,942.19
  4. Step 4: Simplify right side
    12,261.43x = 72,509,607.37
  5. Step 5: Solve for x
    x = 72,509,607.37/12,261.43
  6. Step 6: Final answer
    x = 5,913.63

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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.