Home / 12,274.36-18,408.96-3,955.12

Finding the Fourth Proportional to 12,274.36, 18,408.96 and 3,955.12

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Solution

The fourth proportional to 12,274.36, 18,408.96 and 3,955.12 is: 5,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.36 : 18,408.96 = 3,955.12 : x
  2. Step 2: Convert to fraction form
    12,274.36/18,408.96 = 3,955.12/x
  3. Step 3: Cross multiply
    12,274.36x = 18,408.96 × 3,955.12
  4. Step 4: Simplify right side
    12,274.36x = 72,809,645.88
  5. Step 5: Solve for x
    x = 72,809,645.88/12,274.36
  6. Step 6: Final answer
    x = 5,931.85

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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.