Home / 7,458.64-11,187.25-1,911.83

Finding the Fourth Proportional to 7,458.64, 11,187.25 and 1,911.83

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Solution

The fourth proportional to 7,458.64, 11,187.25 and 1,911.83 is: 2,867.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.64 : 11,187.25 = 1,911.83 : x
  2. Step 2: Convert to fraction form
    7,458.64/11,187.25 = 1,911.83/x
  3. Step 3: Cross multiply
    7,458.64x = 11,187.25 × 1,911.83
  4. Step 4: Simplify right side
    7,458.64x = 21,388,059.45
  5. Step 5: Solve for x
    x = 21,388,059.45/7,458.64
  6. Step 6: Final answer
    x = 2,867.56

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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.