Home / 7,382.45-10,187.70-4,025.25

Finding the Fourth Proportional to 7,382.45, 10,187.70 and 4,025.25

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Solution

The fourth proportional to 7,382.45, 10,187.70 and 4,025.25 is: 5,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.45 : 10,187.70 = 4,025.25 : x
  2. Step 2: Convert to fraction form
    7,382.45/10,187.70 = 4,025.25/x
  3. Step 3: Cross multiply
    7,382.45x = 10,187.70 × 4,025.25
  4. Step 4: Simplify right side
    7,382.45x = 41,008,039.43
  5. Step 5: Solve for x
    x = 41,008,039.43/7,382.45
  6. Step 6: Final answer
    x = 5,554.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.