Home / 13,370.43-18,408.96-11,776.05

Finding the Fourth Proportional to 13,370.43, 18,408.96 and 11,776.05

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Solution

The fourth proportional to 13,370.43, 18,408.96 and 11,776.05 is: 16,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.43 : 18,408.96 = 11,776.05 : x
  2. Step 2: Convert to fraction form
    13,370.43/18,408.96 = 11,776.05/x
  3. Step 3: Cross multiply
    13,370.43x = 18,408.96 × 11,776.05
  4. Step 4: Simplify right side
    13,370.43x = 216,784,833.41
  5. Step 5: Solve for x
    x = 216,784,833.41/13,370.43
  6. Step 6: Final answer
    x = 16,213.75

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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.