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Finding the Fourth Proportional to 13,596.84, 18,768.84 and 13,222.32

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Solution

The fourth proportional to 13,596.84, 18,768.84 and 13,222.32 is: 18,251.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.84 : 18,768.84 = 13,222.32 : x
  2. Step 2: Convert to fraction form
    13,596.84/18,768.84 = 13,222.32/x
  3. Step 3: Cross multiply
    13,596.84x = 18,768.84 × 13,222.32
  4. Step 4: Simplify right side
    13,596.84x = 248,167,608.51
  5. Step 5: Solve for x
    x = 248,167,608.51/13,596.84
  6. Step 6: Final answer
    x = 18,251.86

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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.