Home / 7,994.21-11,989.95-3,610.64

Finding the Fourth Proportional to 7,994.21, 11,989.95 and 3,610.64

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Solution

The fourth proportional to 7,994.21, 11,989.95 and 3,610.64 is: 5,415.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.21 : 11,989.95 = 3,610.64 : x
  2. Step 2: Convert to fraction form
    7,994.21/11,989.95 = 3,610.64/x
  3. Step 3: Cross multiply
    7,994.21x = 11,989.95 × 3,610.64
  4. Step 4: Simplify right side
    7,994.21x = 43,291,393.07
  5. Step 5: Solve for x
    x = 43,291,393.07/7,994.21
  6. Step 6: Final answer
    x = 5,415.34

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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.