Home / 11,816.70-16,316.55-8,047.77

Finding the Fourth Proportional to 11,816.70, 16,316.55 and 8,047.77

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Solution

The fourth proportional to 11,816.70, 16,316.55 and 8,047.77 is: 11,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.70 : 16,316.55 = 8,047.77 : x
  2. Step 2: Convert to fraction form
    11,816.70/16,316.55 = 8,047.77/x
  3. Step 3: Cross multiply
    11,816.70x = 16,316.55 × 8,047.77
  4. Step 4: Simplify right side
    11,816.70x = 131,311,841.59
  5. Step 5: Solve for x
    x = 131,311,841.59/11,816.70
  6. Step 6: Final answer
    x = 11,112.40

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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.