Home / 11,728.60-16,081.54-11,580.98

Finding the Fourth Proportional to 11,728.60, 16,081.54 and 11,580.98

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Solution

The fourth proportional to 11,728.60, 16,081.54 and 11,580.98 is: 15,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.60 : 16,081.54 = 11,580.98 : x
  2. Step 2: Convert to fraction form
    11,728.60/16,081.54 = 11,580.98/x
  3. Step 3: Cross multiply
    11,728.60x = 16,081.54 × 11,580.98
  4. Step 4: Simplify right side
    11,728.60x = 186,239,883.75
  5. Step 5: Solve for x
    x = 186,239,883.75/11,728.60
  6. Step 6: Final answer
    x = 15,879.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.