Home / 13,212.72-19,725.12-11,244.96

Finding the Fourth Proportional to 13,212.72, 19,725.12 and 11,244.96

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Solution

The fourth proportional to 13,212.72, 19,725.12 and 11,244.96 is: 16,787.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.72 : 19,725.12 = 11,244.96 : x
  2. Step 2: Convert to fraction form
    13,212.72/19,725.12 = 11,244.96/x
  3. Step 3: Cross multiply
    13,212.72x = 19,725.12 × 11,244.96
  4. Step 4: Simplify right side
    13,212.72x = 221,808,185.40
  5. Step 5: Solve for x
    x = 221,808,185.40/13,212.72
  6. Step 6: Final answer
    x = 16,787.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.