Home / 7,621.97-11,364.48-6,971.09

Finding the Fourth Proportional to 7,621.97, 11,364.48 and 6,971.09

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Solution

The fourth proportional to 7,621.97, 11,364.48 and 6,971.09 is: 10,394.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.97 : 11,364.48 = 6,971.09 : x
  2. Step 2: Convert to fraction form
    7,621.97/11,364.48 = 6,971.09/x
  3. Step 3: Cross multiply
    7,621.97x = 11,364.48 × 6,971.09
  4. Step 4: Simplify right side
    7,621.97x = 79,222,812.88
  5. Step 5: Solve for x
    x = 79,222,812.88/7,621.97
  6. Step 6: Final answer
    x = 10,394.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.