Home / 13,968.84-19,286.10-8,671.44

Finding the Fourth Proportional to 13,968.84, 19,286.10 and 8,671.44

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Solution

The fourth proportional to 13,968.84, 19,286.10 and 8,671.44 is: 11,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.84 : 19,286.10 = 8,671.44 : x
  2. Step 2: Convert to fraction form
    13,968.84/19,286.10 = 8,671.44/x
  3. Step 3: Cross multiply
    13,968.84x = 19,286.10 × 8,671.44
  4. Step 4: Simplify right side
    13,968.84x = 167,238,258.98
  5. Step 5: Solve for x
    x = 167,238,258.98/13,968.84
  6. Step 6: Final answer
    x = 11,972.24

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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.