Home / 7,218.48-9,942.84-6,734.64

Finding the Fourth Proportional to 7,218.48, 9,942.84 and 6,734.64

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Solution

The fourth proportional to 7,218.48, 9,942.84 and 6,734.64 is: 9,276.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.48 : 9,942.84 = 6,734.64 : x
  2. Step 2: Convert to fraction form
    7,218.48/9,942.84 = 6,734.64/x
  3. Step 3: Cross multiply
    7,218.48x = 9,942.84 × 6,734.64
  4. Step 4: Simplify right side
    7,218.48x = 66,961,447.98
  5. Step 5: Solve for x
    x = 66,961,447.98/7,218.48
  6. Step 6: Final answer
    x = 9,276.39

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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.