Home / 13,235.67-18,268.53-8,196.87

Finding the Fourth Proportional to 13,235.67, 18,268.53 and 8,196.87

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Solution

The fourth proportional to 13,235.67, 18,268.53 and 8,196.87 is: 11,313.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.67 : 18,268.53 = 8,196.87 : x
  2. Step 2: Convert to fraction form
    13,235.67/18,268.53 = 8,196.87/x
  3. Step 3: Cross multiply
    13,235.67x = 18,268.53 × 8,196.87
  4. Step 4: Simplify right side
    13,235.67x = 149,744,765.50
  5. Step 5: Solve for x
    x = 149,744,765.50/13,235.67
  6. Step 6: Final answer
    x = 11,313.73

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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.