Home / 12,368.72-18,553.28-3,604.11

Finding the Fourth Proportional to 12,368.72, 18,553.28 and 3,604.11

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Solution

The fourth proportional to 12,368.72, 18,553.28 and 3,604.11 is: 5,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.72 : 18,553.28 = 3,604.11 : x
  2. Step 2: Convert to fraction form
    12,368.72/18,553.28 = 3,604.11/x
  3. Step 3: Cross multiply
    12,368.72x = 18,553.28 × 3,604.11
  4. Step 4: Simplify right side
    12,368.72x = 66,868,043.96
  5. Step 5: Solve for x
    x = 66,868,043.96/12,368.72
  6. Step 6: Final answer
    x = 5,406.22

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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.