Home / 18,905.05-26,056.01-13,858.54

Finding the Fourth Proportional to 18,905.05, 26,056.01 and 13,858.54

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Solution

The fourth proportional to 18,905.05, 26,056.01 and 13,858.54 is: 19,100.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.05 : 26,056.01 = 13,858.54 : x
  2. Step 2: Convert to fraction form
    18,905.05/26,056.01 = 13,858.54/x
  3. Step 3: Cross multiply
    18,905.05x = 26,056.01 × 13,858.54
  4. Step 4: Simplify right side
    18,905.05x = 361,098,187.53
  5. Step 5: Solve for x
    x = 361,098,187.53/18,905.05
  6. Step 6: Final answer
    x = 19,100.62

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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.