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Finding the Fourth Proportional to 13,652.84, 20,478.54 and 6,725

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Solution

The fourth proportional to 13,652.84, 20,478.54 and 6,725 is: 10,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.84 : 20,478.54 = 6,725 : x
  2. Step 2: Convert to fraction form
    13,652.84/20,478.54 = 6,725/x
  3. Step 3: Cross multiply
    13,652.84x = 20,478.54 × 6,725
  4. Step 4: Simplify right side
    13,652.84x = 137,718,181.50
  5. Step 5: Solve for x
    x = 137,718,181.50/13,652.84
  6. Step 6: Final answer
    x = 10,087.15

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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.