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Finding the Fourth Proportional to 12,549.84, 18,825.48 and 3,783.84

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Solution

The fourth proportional to 12,549.84, 18,825.48 and 3,783.84 is: 5,675.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.84 : 18,825.48 = 3,783.84 : x
  2. Step 2: Convert to fraction form
    12,549.84/18,825.48 = 3,783.84/x
  3. Step 3: Cross multiply
    12,549.84x = 18,825.48 × 3,783.84
  4. Step 4: Simplify right side
    12,549.84x = 71,232,604.24
  5. Step 5: Solve for x
    x = 71,232,604.24/12,549.84
  6. Step 6: Final answer
    x = 5,675.98

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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.