Home / 10,665.12-15,999.44-3,268.84

Finding the Fourth Proportional to 10,665.12, 15,999.44 and 3,268.84

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Solution

The fourth proportional to 10,665.12, 15,999.44 and 3,268.84 is: 4,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.12 : 15,999.44 = 3,268.84 : x
  2. Step 2: Convert to fraction form
    10,665.12/15,999.44 = 3,268.84/x
  3. Step 3: Cross multiply
    10,665.12x = 15,999.44 × 3,268.84
  4. Step 4: Simplify right side
    10,665.12x = 52,299,609.45
  5. Step 5: Solve for x
    x = 52,299,609.45/10,665.12
  6. Step 6: Final answer
    x = 4,903.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.