Home / 18,505.89-25,537.68-11,338.59

Finding the Fourth Proportional to 18,505.89, 25,537.68 and 11,338.59

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Solution

The fourth proportional to 18,505.89, 25,537.68 and 11,338.59 is: 15,646.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.89 : 25,537.68 = 11,338.59 : x
  2. Step 2: Convert to fraction form
    18,505.89/25,537.68 = 11,338.59/x
  3. Step 3: Cross multiply
    18,505.89x = 25,537.68 × 11,338.59
  4. Step 4: Simplify right side
    18,505.89x = 289,561,283.07
  5. Step 5: Solve for x
    x = 289,561,283.07/18,505.89
  6. Step 6: Final answer
    x = 15,646.98

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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.