Home / 13,257.53-19,885.83-3,396.90

Finding the Fourth Proportional to 13,257.53, 19,885.83 and 3,396.90

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Solution

The fourth proportional to 13,257.53, 19,885.83 and 3,396.90 is: 5,095.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.53 : 19,885.83 = 3,396.90 : x
  2. Step 2: Convert to fraction form
    13,257.53/19,885.83 = 3,396.90/x
  3. Step 3: Cross multiply
    13,257.53x = 19,885.83 × 3,396.90
  4. Step 4: Simplify right side
    13,257.53x = 67,550,175.93
  5. Step 5: Solve for x
    x = 67,550,175.93/13,257.53
  6. Step 6: Final answer
    x = 5,095.23

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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.