Home / 12,775.68-19,158.78-4,453.56

Finding the Fourth Proportional to 12,775.68, 19,158.78 and 4,453.56

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Solution

The fourth proportional to 12,775.68, 19,158.78 and 4,453.56 is: 6,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.68 : 19,158.78 = 4,453.56 : x
  2. Step 2: Convert to fraction form
    12,775.68/19,158.78 = 4,453.56/x
  3. Step 3: Cross multiply
    12,775.68x = 19,158.78 × 4,453.56
  4. Step 4: Simplify right side
    12,775.68x = 85,324,776.26
  5. Step 5: Solve for x
    x = 85,324,776.26/12,775.68
  6. Step 6: Final answer
    x = 6,678.69

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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.