Home / 19,268.70-28,908.45-9,408.30

Finding the Fourth Proportional to 19,268.70, 28,908.45 and 9,408.30

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Solution

The fourth proportional to 19,268.70, 28,908.45 and 9,408.30 is: 14,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.70 : 28,908.45 = 9,408.30 : x
  2. Step 2: Convert to fraction form
    19,268.70/28,908.45 = 9,408.30/x
  3. Step 3: Cross multiply
    19,268.70x = 28,908.45 × 9,408.30
  4. Step 4: Simplify right side
    19,268.70x = 271,979,370.14
  5. Step 5: Solve for x
    x = 271,979,370.14/19,268.70
  6. Step 6: Final answer
    x = 14,115.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.