Home / 12,659.32-18,988.44-3,893.86

Finding the Fourth Proportional to 12,659.32, 18,988.44 and 3,893.86

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Solution

The fourth proportional to 12,659.32, 18,988.44 and 3,893.86 is: 5,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.32 : 18,988.44 = 3,893.86 : x
  2. Step 2: Convert to fraction form
    12,659.32/18,988.44 = 3,893.86/x
  3. Step 3: Cross multiply
    12,659.32x = 18,988.44 × 3,893.86
  4. Step 4: Simplify right side
    12,659.32x = 73,938,326.98
  5. Step 5: Solve for x
    x = 73,938,326.98/12,659.32
  6. Step 6: Final answer
    x = 5,840.62

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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.