Home / 13,208.10-18,229.04-8,173.94

Finding the Fourth Proportional to 13,208.10, 18,229.04 and 8,173.94

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Solution

The fourth proportional to 13,208.10, 18,229.04 and 8,173.94 is: 11,281.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.10 : 18,229.04 = 8,173.94 : x
  2. Step 2: Convert to fraction form
    13,208.10/18,229.04 = 8,173.94/x
  3. Step 3: Cross multiply
    13,208.10x = 18,229.04 × 8,173.94
  4. Step 4: Simplify right side
    13,208.10x = 149,003,027.36
  5. Step 5: Solve for x
    x = 149,003,027.36/13,208.10
  6. Step 6: Final answer
    x = 11,281.19

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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.