Home / 12,659.77-18,910.72-9,379.27

Finding the Fourth Proportional to 12,659.77, 18,910.72 and 9,379.27

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Solution

The fourth proportional to 12,659.77, 18,910.72 and 9,379.27 is: 14,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.77 : 18,910.72 = 9,379.27 : x
  2. Step 2: Convert to fraction form
    12,659.77/18,910.72 = 9,379.27/x
  3. Step 3: Cross multiply
    12,659.77x = 18,910.72 × 9,379.27
  4. Step 4: Simplify right side
    12,659.77x = 177,368,748.77
  5. Step 5: Solve for x
    x = 177,368,748.77/12,659.77
  6. Step 6: Final answer
    x = 14,010.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.