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Finding the Fourth Proportional to 6,987.97, 9,643.39 and 3,844.14

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Solution

The fourth proportional to 6,987.97, 9,643.39 and 3,844.14 is: 5,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.97 : 9,643.39 = 3,844.14 : x
  2. Step 2: Convert to fraction form
    6,987.97/9,643.39 = 3,844.14/x
  3. Step 3: Cross multiply
    6,987.97x = 9,643.39 × 3,844.14
  4. Step 4: Simplify right side
    6,987.97x = 37,070,541.23
  5. Step 5: Solve for x
    x = 37,070,541.23/6,987.97
  6. Step 6: Final answer
    x = 5,304.91

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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.