Home / 12,266.36-18,396.96-3,947.12

Finding the Fourth Proportional to 12,266.36, 18,396.96 and 3,947.12

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Solution

The fourth proportional to 12,266.36, 18,396.96 and 3,947.12 is: 5,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.36 : 18,396.96 = 3,947.12 : x
  2. Step 2: Convert to fraction form
    12,266.36/18,396.96 = 3,947.12/x
  3. Step 3: Cross multiply
    12,266.36x = 18,396.96 × 3,947.12
  4. Step 4: Simplify right side
    12,266.36x = 72,615,008.76
  5. Step 5: Solve for x
    x = 72,615,008.76/12,266.36
  6. Step 6: Final answer
    x = 5,919.85

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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.