Home / 12,164.95-18,247.43-3,399.87

Finding the Fourth Proportional to 12,164.95, 18,247.43 and 3,399.87

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Solution

The fourth proportional to 12,164.95, 18,247.43 and 3,399.87 is: 5,099.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.95 : 18,247.43 = 3,399.87 : x
  2. Step 2: Convert to fraction form
    12,164.95/18,247.43 = 3,399.87/x
  3. Step 3: Cross multiply
    12,164.95x = 18,247.43 × 3,399.87
  4. Step 4: Simplify right side
    12,164.95x = 62,038,889.83
  5. Step 5: Solve for x
    x = 62,038,889.83/12,164.95
  6. Step 6: Final answer
    x = 5,099.81

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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.