Home / 18,276.96-27,408.72-8,911.20

Finding the Fourth Proportional to 18,276.96, 27,408.72 and 8,911.20

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Solution

The fourth proportional to 18,276.96, 27,408.72 and 8,911.20 is: 13,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.96 : 27,408.72 = 8,911.20 : x
  2. Step 2: Convert to fraction form
    18,276.96/27,408.72 = 8,911.20/x
  3. Step 3: Cross multiply
    18,276.96x = 27,408.72 × 8,911.20
  4. Step 4: Simplify right side
    18,276.96x = 244,244,585.66
  5. Step 5: Solve for x
    x = 244,244,585.66/18,276.96
  6. Step 6: Final answer
    x = 13,363.52

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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.