Home / 7,845.39-10,826.19-4,308.39

Finding the Fourth Proportional to 7,845.39, 10,826.19 and 4,308.39

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Solution

The fourth proportional to 7,845.39, 10,826.19 and 4,308.39 is: 5,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.39 : 10,826.19 = 4,308.39 : x
  2. Step 2: Convert to fraction form
    7,845.39/10,826.19 = 4,308.39/x
  3. Step 3: Cross multiply
    7,845.39x = 10,826.19 × 4,308.39
  4. Step 4: Simplify right side
    7,845.39x = 46,643,448.73
  5. Step 5: Solve for x
    x = 46,643,448.73/7,845.39
  6. Step 6: Final answer
    x = 5,945.33

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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.