Home / 13,669.57-20,504.31-4,905.10

Finding the Fourth Proportional to 13,669.57, 20,504.31 and 4,905.10

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Solution

The fourth proportional to 13,669.57, 20,504.31 and 4,905.10 is: 7,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.57 : 20,504.31 = 4,905.10 : x
  2. Step 2: Convert to fraction form
    13,669.57/20,504.31 = 4,905.10/x
  3. Step 3: Cross multiply
    13,669.57x = 20,504.31 × 4,905.10
  4. Step 4: Simplify right side
    13,669.57x = 100,575,690.98
  5. Step 5: Solve for x
    x = 100,575,690.98/13,669.57
  6. Step 6: Final answer
    x = 7,357.63

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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.