Home / 12,362.70-18,571.37-7,435.20

Finding the Fourth Proportional to 12,362.70, 18,571.37 and 7,435.20

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Solution

The fourth proportional to 12,362.70, 18,571.37 and 7,435.20 is: 11,169.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.70 : 18,571.37 = 7,435.20 : x
  2. Step 2: Convert to fraction form
    12,362.70/18,571.37 = 7,435.20/x
  3. Step 3: Cross multiply
    12,362.70x = 18,571.37 × 7,435.20
  4. Step 4: Simplify right side
    12,362.70x = 138,081,813.05
  5. Step 5: Solve for x
    x = 138,081,813.05/12,362.70
  6. Step 6: Final answer
    x = 11,169.23

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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.