Home / 7,765.39-11,647.27-2,218.38

Finding the Fourth Proportional to 7,765.39, 11,647.27 and 2,218.38

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Solution

The fourth proportional to 7,765.39, 11,647.27 and 2,218.38 is: 3,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.39 : 11,647.27 = 2,218.38 : x
  2. Step 2: Convert to fraction form
    7,765.39/11,647.27 = 2,218.38/x
  3. Step 3: Cross multiply
    7,765.39x = 11,647.27 × 2,218.38
  4. Step 4: Simplify right side
    7,765.39x = 25,838,070.82
  5. Step 5: Solve for x
    x = 25,838,070.82/7,765.39
  6. Step 6: Final answer
    x = 3,327.34

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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.