Home / 12,455.98-18,679.30-4,134.44

Finding the Fourth Proportional to 12,455.98, 18,679.30 and 4,134.44

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Solution

The fourth proportional to 12,455.98, 18,679.30 and 4,134.44 is: 6,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.98 : 18,679.30 = 4,134.44 : x
  2. Step 2: Convert to fraction form
    12,455.98/18,679.30 = 4,134.44/x
  3. Step 3: Cross multiply
    12,455.98x = 18,679.30 × 4,134.44
  4. Step 4: Simplify right side
    12,455.98x = 77,228,445.09
  5. Step 5: Solve for x
    x = 77,228,445.09/12,455.98
  6. Step 6: Final answer
    x = 6,200.11

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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.