Home / 7,163.64-9,883.79-4,645.85

Finding the Fourth Proportional to 7,163.64, 9,883.79 and 4,645.85

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Solution

The fourth proportional to 7,163.64, 9,883.79 and 4,645.85 is: 6,409.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.64 : 9,883.79 = 4,645.85 : x
  2. Step 2: Convert to fraction form
    7,163.64/9,883.79 = 4,645.85/x
  3. Step 3: Cross multiply
    7,163.64x = 9,883.79 × 4,645.85
  4. Step 4: Simplify right side
    7,163.64x = 45,918,533.12
  5. Step 5: Solve for x
    x = 45,918,533.12/7,163.64
  6. Step 6: Final answer
    x = 6,409.94

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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.