Home / 11,816.60-16,306.73-6,780.71

Finding the Fourth Proportional to 11,816.60, 16,306.73 and 6,780.71

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Solution

The fourth proportional to 11,816.60, 16,306.73 and 6,780.71 is: 9,357.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.60 : 16,306.73 = 6,780.71 : x
  2. Step 2: Convert to fraction form
    11,816.60/16,306.73 = 6,780.71/x
  3. Step 3: Cross multiply
    11,816.60x = 16,306.73 × 6,780.71
  4. Step 4: Simplify right side
    11,816.60x = 110,571,183.36
  5. Step 5: Solve for x
    x = 110,571,183.36/11,816.60
  6. Step 6: Final answer
    x = 9,357.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.