Home / 12,177.05-16,816.37-8,409.96

Finding the Fourth Proportional to 12,177.05, 16,816.37 and 8,409.96

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Solution

The fourth proportional to 12,177.05, 16,816.37 and 8,409.96 is: 11,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.05 : 16,816.37 = 8,409.96 : x
  2. Step 2: Convert to fraction form
    12,177.05/16,816.37 = 8,409.96/x
  3. Step 3: Cross multiply
    12,177.05x = 16,816.37 × 8,409.96
  4. Step 4: Simplify right side
    12,177.05x = 141,424,957.00
  5. Step 5: Solve for x
    x = 141,424,957.00/12,177.05
  6. Step 6: Final answer
    x = 11,614.06

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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.