Home / 12,775.05-19,164.38-4,453.85

Finding the Fourth Proportional to 12,775.05, 19,164.38 and 4,453.85

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Solution

The fourth proportional to 12,775.05, 19,164.38 and 4,453.85 is: 6,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.05 : 19,164.38 = 4,453.85 : x
  2. Step 2: Convert to fraction form
    12,775.05/19,164.38 = 4,453.85/x
  3. Step 3: Cross multiply
    12,775.05x = 19,164.38 × 4,453.85
  4. Step 4: Simplify right side
    12,775.05x = 85,355,299.50
  5. Step 5: Solve for x
    x = 85,355,299.50/12,775.05
  6. Step 6: Final answer
    x = 6,681.41

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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.