Home / 12,256.78-18,383.44-3,935.71

Finding the Fourth Proportional to 12,256.78, 18,383.44 and 3,935.71

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Solution

The fourth proportional to 12,256.78, 18,383.44 and 3,935.71 is: 5,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.78 : 18,383.44 = 3,935.71 : x
  2. Step 2: Convert to fraction form
    12,256.78/18,383.44 = 3,935.71/x
  3. Step 3: Cross multiply
    12,256.78x = 18,383.44 × 3,935.71
  4. Step 4: Simplify right side
    12,256.78x = 72,351,888.64
  5. Step 5: Solve for x
    x = 72,351,888.64/12,256.78
  6. Step 6: Final answer
    x = 5,903.01

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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.