Home / 12,963.28-19,440.86-4,196.38

Finding the Fourth Proportional to 12,963.28, 19,440.86 and 4,196.38

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Solution

The fourth proportional to 12,963.28, 19,440.86 and 4,196.38 is: 6,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.28 : 19,440.86 = 4,196.38 : x
  2. Step 2: Convert to fraction form
    12,963.28/19,440.86 = 4,196.38/x
  3. Step 3: Cross multiply
    12,963.28x = 19,440.86 × 4,196.38
  4. Step 4: Simplify right side
    12,963.28x = 81,581,236.09
  5. Step 5: Solve for x
    x = 81,581,236.09/12,963.28
  6. Step 6: Final answer
    x = 6,293.26

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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.