Home / 12,601.61-18,893.15-4,279.39

Finding the Fourth Proportional to 12,601.61, 18,893.15 and 4,279.39

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Solution

The fourth proportional to 12,601.61, 18,893.15 and 4,279.39 is: 6,415.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.61 : 18,893.15 = 4,279.39 : x
  2. Step 2: Convert to fraction form
    12,601.61/18,893.15 = 4,279.39/x
  3. Step 3: Cross multiply
    12,601.61x = 18,893.15 × 4,279.39
  4. Step 4: Simplify right side
    12,601.61x = 80,851,157.18
  5. Step 5: Solve for x
    x = 80,851,157.18/12,601.61
  6. Step 6: Final answer
    x = 6,415.94

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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.