Home / 11,513.88-17,268.12-9,742.68

Finding the Fourth Proportional to 11,513.88, 17,268.12 and 9,742.68

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Solution

The fourth proportional to 11,513.88, 17,268.12 and 9,742.68 is: 14,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.88 : 17,268.12 = 9,742.68 : x
  2. Step 2: Convert to fraction form
    11,513.88/17,268.12 = 9,742.68/x
  3. Step 3: Cross multiply
    11,513.88x = 17,268.12 × 9,742.68
  4. Step 4: Simplify right side
    11,513.88x = 168,237,767.36
  5. Step 5: Solve for x
    x = 168,237,767.36/11,513.88
  6. Step 6: Final answer
    x = 14,611.74

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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.