Home / 12,375.64-18,559.80-3,608.20

Finding the Fourth Proportional to 12,375.64, 18,559.80 and 3,608.20

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Solution

The fourth proportional to 12,375.64, 18,559.80 and 3,608.20 is: 5,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.64 : 18,559.80 = 3,608.20 : x
  2. Step 2: Convert to fraction form
    12,375.64/18,559.80 = 3,608.20/x
  3. Step 3: Cross multiply
    12,375.64x = 18,559.80 × 3,608.20
  4. Step 4: Simplify right side
    12,375.64x = 66,967,470.36
  5. Step 5: Solve for x
    x = 66,967,470.36/12,375.64
  6. Step 6: Final answer
    x = 5,411.23

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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.