Home / 12,963.44-17,904.24-8,764.40

Finding the Fourth Proportional to 12,963.44, 17,904.24 and 8,764.40

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Solution

The fourth proportional to 12,963.44, 17,904.24 and 8,764.40 is: 12,104.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.44 : 17,904.24 = 8,764.40 : x
  2. Step 2: Convert to fraction form
    12,963.44/17,904.24 = 8,764.40/x
  3. Step 3: Cross multiply
    12,963.44x = 17,904.24 × 8,764.40
  4. Step 4: Simplify right side
    12,963.44x = 156,919,921.06
  5. Step 5: Solve for x
    x = 156,919,921.06/12,963.44
  6. Step 6: Final answer
    x = 12,104.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.