Home / 8,112.24-12,168.40-1,956.24

Finding the Fourth Proportional to 8,112.24, 12,168.40 and 1,956.24

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Solution

The fourth proportional to 8,112.24, 12,168.40 and 1,956.24 is: 2,934.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.24 : 12,168.40 = 1,956.24 : x
  2. Step 2: Convert to fraction form
    8,112.24/12,168.40 = 1,956.24/x
  3. Step 3: Cross multiply
    8,112.24x = 12,168.40 × 1,956.24
  4. Step 4: Simplify right side
    8,112.24x = 23,804,310.82
  5. Step 5: Solve for x
    x = 23,804,310.82/8,112.24
  6. Step 6: Final answer
    x = 2,934.37

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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.