Home / 18,647.20-25,741.68-13,273.12

Finding the Fourth Proportional to 18,647.20, 25,741.68 and 13,273.12

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Solution

The fourth proportional to 18,647.20, 25,741.68 and 13,273.12 is: 18,322.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.20 : 25,741.68 = 13,273.12 : x
  2. Step 2: Convert to fraction form
    18,647.20/25,741.68 = 13,273.12/x
  3. Step 3: Cross multiply
    18,647.20x = 25,741.68 × 13,273.12
  4. Step 4: Simplify right side
    18,647.20x = 341,672,407.64
  5. Step 5: Solve for x
    x = 341,672,407.64/18,647.20
  6. Step 6: Final answer
    x = 18,322.99

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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.