Home / 13,242.24-18,267.39-8,204.85

Finding the Fourth Proportional to 13,242.24, 18,267.39 and 8,204.85

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Solution

The fourth proportional to 13,242.24, 18,267.39 and 8,204.85 is: 11,318.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.24 : 18,267.39 = 8,204.85 : x
  2. Step 2: Convert to fraction form
    13,242.24/18,267.39 = 8,204.85/x
  3. Step 3: Cross multiply
    13,242.24x = 18,267.39 × 8,204.85
  4. Step 4: Simplify right side
    13,242.24x = 149,881,194.84
  5. Step 5: Solve for x
    x = 149,881,194.84/13,242.24
  6. Step 6: Final answer
    x = 11,318.42

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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.