Home / 18,538.77-25,563.00-11,813.74

Finding the Fourth Proportional to 18,538.77, 25,563.00 and 11,813.74

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Solution

The fourth proportional to 18,538.77, 25,563.00 and 11,813.74 is: 16,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.77 : 25,563.00 = 11,813.74 : x
  2. Step 2: Convert to fraction form
    18,538.77/25,563.00 = 11,813.74/x
  3. Step 3: Cross multiply
    18,538.77x = 25,563.00 × 11,813.74
  4. Step 4: Simplify right side
    18,538.77x = 301,994,669.99
  5. Step 5: Solve for x
    x = 301,994,669.99/18,538.77
  6. Step 6: Final answer
    x = 16,289.90

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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.