Home / 12,677.24-19,013.70-3,909.80

Finding the Fourth Proportional to 12,677.24, 19,013.70 and 3,909.80

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Solution

The fourth proportional to 12,677.24, 19,013.70 and 3,909.80 is: 5,864.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.24 : 19,013.70 = 3,909.80 : x
  2. Step 2: Convert to fraction form
    12,677.24/19,013.70 = 3,909.80/x
  3. Step 3: Cross multiply
    12,677.24x = 19,013.70 × 3,909.80
  4. Step 4: Simplify right side
    12,677.24x = 74,339,764.26
  5. Step 5: Solve for x
    x = 74,339,764.26/12,677.24
  6. Step 6: Final answer
    x = 5,864.03

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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.