Home / 18,427.02-25,427.68-10,249.05

Finding the Fourth Proportional to 18,427.02, 25,427.68 and 10,249.05

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Solution

The fourth proportional to 18,427.02, 25,427.68 and 10,249.05 is: 14,142.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.02 : 25,427.68 = 10,249.05 : x
  2. Step 2: Convert to fraction form
    18,427.02/25,427.68 = 10,249.05/x
  3. Step 3: Cross multiply
    18,427.02x = 25,427.68 × 10,249.05
  4. Step 4: Simplify right side
    18,427.02x = 260,609,563.70
  5. Step 5: Solve for x
    x = 260,609,563.70/18,427.02
  6. Step 6: Final answer
    x = 14,142.79

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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.