Home / 7,162.36-9,883.41-4,178.45

Finding the Fourth Proportional to 7,162.36, 9,883.41 and 4,178.45

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Solution

The fourth proportional to 7,162.36, 9,883.41 and 4,178.45 is: 5,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.36 : 9,883.41 = 4,178.45 : x
  2. Step 2: Convert to fraction form
    7,162.36/9,883.41 = 4,178.45/x
  3. Step 3: Cross multiply
    7,162.36x = 9,883.41 × 4,178.45
  4. Step 4: Simplify right side
    7,162.36x = 41,297,334.51
  5. Step 5: Solve for x
    x = 41,297,334.51/7,162.36
  6. Step 6: Final answer
    x = 5,765.88

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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.