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Finding the Fourth Proportional to 12,903.19, 19,358.02 and 3,669.19

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Solution

The fourth proportional to 12,903.19, 19,358.02 and 3,669.19 is: 5,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.19 : 19,358.02 = 3,669.19 : x
  2. Step 2: Convert to fraction form
    12,903.19/19,358.02 = 3,669.19/x
  3. Step 3: Cross multiply
    12,903.19x = 19,358.02 × 3,669.19
  4. Step 4: Simplify right side
    12,903.19x = 71,028,253.40
  5. Step 5: Solve for x
    x = 71,028,253.40/12,903.19
  6. Step 6: Final answer
    x = 5,504.70

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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.