Home / 12,963.43-19,440.28-10,222.39

Finding the Fourth Proportional to 12,963.43, 19,440.28 and 10,222.39

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Solution

The fourth proportional to 12,963.43, 19,440.28 and 10,222.39 is: 15,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.43 : 19,440.28 = 10,222.39 : x
  2. Step 2: Convert to fraction form
    12,963.43/19,440.28 = 10,222.39/x
  3. Step 3: Cross multiply
    12,963.43x = 19,440.28 × 10,222.39
  4. Step 4: Simplify right side
    12,963.43x = 198,726,123.87
  5. Step 5: Solve for x
    x = 198,726,123.87/12,963.43
  6. Step 6: Final answer
    x = 15,329.75

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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.