Home / 7,619.25-11,415.80-6,848.88

Finding the Fourth Proportional to 7,619.25, 11,415.80 and 6,848.88

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Solution

The fourth proportional to 7,619.25, 11,415.80 and 6,848.88 is: 10,261.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.25 : 11,415.80 = 6,848.88 : x
  2. Step 2: Convert to fraction form
    7,619.25/11,415.80 = 6,848.88/x
  3. Step 3: Cross multiply
    7,619.25x = 11,415.80 × 6,848.88
  4. Step 4: Simplify right side
    7,619.25x = 78,185,418.62
  5. Step 5: Solve for x
    x = 78,185,418.62/7,619.25
  6. Step 6: Final answer
    x = 10,261.56

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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.