Home / 13,926.98-20,890.13-3,397.07

Finding the Fourth Proportional to 13,926.98, 20,890.13 and 3,397.07

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Solution

The fourth proportional to 13,926.98, 20,890.13 and 3,397.07 is: 5,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.98 : 20,890.13 = 3,397.07 : x
  2. Step 2: Convert to fraction form
    13,926.98/20,890.13 = 3,397.07/x
  3. Step 3: Cross multiply
    13,926.98x = 20,890.13 × 3,397.07
  4. Step 4: Simplify right side
    13,926.98x = 70,965,269.16
  5. Step 5: Solve for x
    x = 70,965,269.16/13,926.98
  6. Step 6: Final answer
    x = 5,095.52

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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.