Home / 12,703.69-19,055.36-3,938.60

Finding the Fourth Proportional to 12,703.69, 19,055.36 and 3,938.60

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Solution

The fourth proportional to 12,703.69, 19,055.36 and 3,938.60 is: 5,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.69 : 19,055.36 = 3,938.60 : x
  2. Step 2: Convert to fraction form
    12,703.69/19,055.36 = 3,938.60/x
  3. Step 3: Cross multiply
    12,703.69x = 19,055.36 × 3,938.60
  4. Step 4: Simplify right side
    12,703.69x = 75,051,487.30
  5. Step 5: Solve for x
    x = 75,051,487.30/12,703.69
  6. Step 6: Final answer
    x = 5,907.85

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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.