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Finding the Fourth Proportional to 12,903.25, 19,358.13 and 3,669.25

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Solution

The fourth proportional to 12,903.25, 19,358.13 and 3,669.25 is: 5,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.25 : 19,358.13 = 3,669.25 : x
  2. Step 2: Convert to fraction form
    12,903.25/19,358.13 = 3,669.25/x
  3. Step 3: Cross multiply
    12,903.25x = 19,358.13 × 3,669.25
  4. Step 4: Simplify right side
    12,903.25x = 71,029,800.16
  5. Step 5: Solve for x
    x = 71,029,800.16/12,903.25
  6. Step 6: Final answer
    x = 5,504.80

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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.