Home / 12,268.72-18,408.54-4,475.71

Finding the Fourth Proportional to 12,268.72, 18,408.54 and 4,475.71

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Solution

The fourth proportional to 12,268.72, 18,408.54 and 4,475.71 is: 6,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.72 : 18,408.54 = 4,475.71 : x
  2. Step 2: Convert to fraction form
    12,268.72/18,408.54 = 4,475.71/x
  3. Step 3: Cross multiply
    12,268.72x = 18,408.54 × 4,475.71
  4. Step 4: Simplify right side
    12,268.72x = 82,391,326.36
  5. Step 5: Solve for x
    x = 82,391,326.36/12,268.72
  6. Step 6: Final answer
    x = 6,715.56

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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.