Home / 7,518.78-10,375.83-4,161.60

Finding the Fourth Proportional to 7,518.78, 10,375.83 and 4,161.60

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Solution

The fourth proportional to 7,518.78, 10,375.83 and 4,161.60 is: 5,742.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.78 : 10,375.83 = 4,161.60 : x
  2. Step 2: Convert to fraction form
    7,518.78/10,375.83 = 4,161.60/x
  3. Step 3: Cross multiply
    7,518.78x = 10,375.83 × 4,161.60
  4. Step 4: Simplify right side
    7,518.78x = 43,180,054.13
  5. Step 5: Solve for x
    x = 43,180,054.13/7,518.78
  6. Step 6: Final answer
    x = 5,742.96

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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.