Home / 12,173.79-18,259.26-3,409.41

Finding the Fourth Proportional to 12,173.79, 18,259.26 and 3,409.41

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Solution

The fourth proportional to 12,173.79, 18,259.26 and 3,409.41 is: 5,113.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.79 : 18,259.26 = 3,409.41 : x
  2. Step 2: Convert to fraction form
    12,173.79/18,259.26 = 3,409.41/x
  3. Step 3: Cross multiply
    12,173.79x = 18,259.26 × 3,409.41
  4. Step 4: Simplify right side
    12,173.79x = 62,253,212.34
  5. Step 5: Solve for x
    x = 62,253,212.34/12,173.79
  6. Step 6: Final answer
    x = 5,113.71

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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.