Home / 12,765.41-19,136.45-5,370.39

Finding the Fourth Proportional to 12,765.41, 19,136.45 and 5,370.39

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Solution

The fourth proportional to 12,765.41, 19,136.45 and 5,370.39 is: 8,050.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.41 : 19,136.45 = 5,370.39 : x
  2. Step 2: Convert to fraction form
    12,765.41/19,136.45 = 5,370.39/x
  3. Step 3: Cross multiply
    12,765.41x = 19,136.45 × 5,370.39
  4. Step 4: Simplify right side
    12,765.41x = 102,770,220.70
  5. Step 5: Solve for x
    x = 102,770,220.70/12,765.41
  6. Step 6: Final answer
    x = 8,050.68

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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.