Home / 18,765.37-25,899.69-12,059.38

Finding the Fourth Proportional to 18,765.37, 25,899.69 and 12,059.38

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Solution

The fourth proportional to 18,765.37, 25,899.69 and 12,059.38 is: 16,644.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.37 : 25,899.69 = 12,059.38 : x
  2. Step 2: Convert to fraction form
    18,765.37/25,899.69 = 12,059.38/x
  3. Step 3: Cross multiply
    18,765.37x = 25,899.69 × 12,059.38
  4. Step 4: Simplify right side
    18,765.37x = 312,334,143.30
  5. Step 5: Solve for x
    x = 312,334,143.30/18,765.37
  6. Step 6: Final answer
    x = 16,644.18

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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.