Home / 13,136.58-19,705.07-3,777.44

Finding the Fourth Proportional to 13,136.58, 19,705.07 and 3,777.44

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Solution

The fourth proportional to 13,136.58, 19,705.07 and 3,777.44 is: 5,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.58 : 19,705.07 = 3,777.44 : x
  2. Step 2: Convert to fraction form
    13,136.58/19,705.07 = 3,777.44/x
  3. Step 3: Cross multiply
    13,136.58x = 19,705.07 × 3,777.44
  4. Step 4: Simplify right side
    13,136.58x = 74,434,630.54
  5. Step 5: Solve for x
    x = 74,434,630.54/13,136.58
  6. Step 6: Final answer
    x = 5,666.21

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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.