Home / 13,372.64-18,463.20-8,338.90

Finding the Fourth Proportional to 13,372.64, 18,463.20 and 8,338.90

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Solution

The fourth proportional to 13,372.64, 18,463.20 and 8,338.90 is: 11,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.64 : 18,463.20 = 8,338.90 : x
  2. Step 2: Convert to fraction form
    13,372.64/18,463.20 = 8,338.90/x
  3. Step 3: Cross multiply
    13,372.64x = 18,463.20 × 8,338.90
  4. Step 4: Simplify right side
    13,372.64x = 153,962,778.48
  5. Step 5: Solve for x
    x = 153,962,778.48/13,372.64
  6. Step 6: Final answer
    x = 11,513.27

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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.