Home / 13,903.98-20,855.79-3,374.09

Finding the Fourth Proportional to 13,903.98, 20,855.79 and 3,374.09

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Solution

The fourth proportional to 13,903.98, 20,855.79 and 3,374.09 is: 5,061.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.98 : 20,855.79 = 3,374.09 : x
  2. Step 2: Convert to fraction form
    13,903.98/20,855.79 = 3,374.09/x
  3. Step 3: Cross multiply
    13,903.98x = 20,855.79 × 3,374.09
  4. Step 4: Simplify right side
    13,903.98x = 70,369,299.06
  5. Step 5: Solve for x
    x = 70,369,299.06/13,903.98
  6. Step 6: Final answer
    x = 5,061.09

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1.5x scale

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.