Home / 18,940.08-26,153.83-11,878.68

Finding the Fourth Proportional to 18,940.08, 26,153.83 and 11,878.68

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Solution

The fourth proportional to 18,940.08, 26,153.83 and 11,878.68 is: 16,402.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.08 : 26,153.83 = 11,878.68 : x
  2. Step 2: Convert to fraction form
    18,940.08/26,153.83 = 11,878.68/x
  3. Step 3: Cross multiply
    18,940.08x = 26,153.83 × 11,878.68
  4. Step 4: Simplify right side
    18,940.08x = 310,672,816.88
  5. Step 5: Solve for x
    x = 310,672,816.88/18,940.08
  6. Step 6: Final answer
    x = 16,402.93

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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.