Home / 12,703.59-19,057.23-3,939.21

Finding the Fourth Proportional to 12,703.59, 19,057.23 and 3,939.21

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Solution

The fourth proportional to 12,703.59, 19,057.23 and 3,939.21 is: 5,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.59 : 19,057.23 = 3,939.21 : x
  2. Step 2: Convert to fraction form
    12,703.59/19,057.23 = 3,939.21/x
  3. Step 3: Cross multiply
    12,703.59x = 19,057.23 × 3,939.21
  4. Step 4: Simplify right side
    12,703.59x = 75,070,430.99
  5. Step 5: Solve for x
    x = 75,070,430.99/12,703.59
  6. Step 6: Final answer
    x = 5,909.39

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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.