Home / 12,180.94-18,269.26-3,416.53

Finding the Fourth Proportional to 12,180.94, 18,269.26 and 3,416.53

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Solution

The fourth proportional to 12,180.94, 18,269.26 and 3,416.53 is: 5,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.94 : 18,269.26 = 3,416.53 : x
  2. Step 2: Convert to fraction form
    12,180.94/18,269.26 = 3,416.53/x
  3. Step 3: Cross multiply
    12,180.94x = 18,269.26 × 3,416.53
  4. Step 4: Simplify right side
    12,180.94x = 62,417,474.87
  5. Step 5: Solve for x
    x = 62,417,474.87/12,180.94
  6. Step 6: Final answer
    x = 5,124.19

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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.