Home / 18,525.72-25,558.61-12,155.84

Finding the Fourth Proportional to 18,525.72, 25,558.61 and 12,155.84

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Solution

The fourth proportional to 18,525.72, 25,558.61 and 12,155.84 is: 16,770.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.72 : 25,558.61 = 12,155.84 : x
  2. Step 2: Convert to fraction form
    18,525.72/25,558.61 = 12,155.84/x
  3. Step 3: Cross multiply
    18,525.72x = 25,558.61 × 12,155.84
  4. Step 4: Simplify right side
    18,525.72x = 310,686,313.00
  5. Step 5: Solve for x
    x = 310,686,313.00/18,525.72
  6. Step 6: Final answer
    x = 16,770.54

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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.