Home / 13,216.97-19,787.04-10,286.39

Finding the Fourth Proportional to 13,216.97, 19,787.04 and 10,286.39

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Solution

The fourth proportional to 13,216.97, 19,787.04 and 10,286.39 is: 15,399.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.97 : 19,787.04 = 10,286.39 : x
  2. Step 2: Convert to fraction form
    13,216.97/19,787.04 = 10,286.39/x
  3. Step 3: Cross multiply
    13,216.97x = 19,787.04 × 10,286.39
  4. Step 4: Simplify right side
    13,216.97x = 203,537,111.45
  5. Step 5: Solve for x
    x = 203,537,111.45/13,216.97
  6. Step 6: Final answer
    x = 15,399.69

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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.