Home / 8,679.02-13,014.44-3,131.64

Finding the Fourth Proportional to 8,679.02, 13,014.44 and 3,131.64

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Solution

The fourth proportional to 8,679.02, 13,014.44 and 3,131.64 is: 4,695.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.02 : 13,014.44 = 3,131.64 : x
  2. Step 2: Convert to fraction form
    8,679.02/13,014.44 = 3,131.64/x
  3. Step 3: Cross multiply
    8,679.02x = 13,014.44 × 3,131.64
  4. Step 4: Simplify right side
    8,679.02x = 40,756,540.88
  5. Step 5: Solve for x
    x = 40,756,540.88/8,679.02
  6. Step 6: Final answer
    x = 4,695.98

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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.