Home / 11,816.84-16,306.56-6,780.57

Finding the Fourth Proportional to 11,816.84, 16,306.56 and 6,780.57

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Solution

The fourth proportional to 11,816.84, 16,306.56 and 6,780.57 is: 9,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.84 : 16,306.56 = 6,780.57 : x
  2. Step 2: Convert to fraction form
    11,816.84/16,306.56 = 6,780.57/x
  3. Step 3: Cross multiply
    11,816.84x = 16,306.56 × 6,780.57
  4. Step 4: Simplify right side
    11,816.84x = 110,567,771.54
  5. Step 5: Solve for x
    x = 110,567,771.54/11,816.84
  6. Step 6: Final answer
    x = 9,356.80

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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.