Home / 19,136.66-26,405.39-10,638.54

Finding the Fourth Proportional to 19,136.66, 26,405.39 and 10,638.54

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Solution

The fourth proportional to 19,136.66, 26,405.39 and 10,638.54 is: 14,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.66 : 26,405.39 = 10,638.54 : x
  2. Step 2: Convert to fraction form
    19,136.66/26,405.39 = 10,638.54/x
  3. Step 3: Cross multiply
    19,136.66x = 26,405.39 × 10,638.54
  4. Step 4: Simplify right side
    19,136.66x = 280,914,824.33
  5. Step 5: Solve for x
    x = 280,914,824.33/19,136.66
  6. Step 6: Final answer
    x = 14,679.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.