Home / 12,511.75-17,268.53-8,041.09

Finding the Fourth Proportional to 12,511.75, 17,268.53 and 8,041.09

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Solution

The fourth proportional to 12,511.75, 17,268.53 and 8,041.09 is: 11,098.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.75 : 17,268.53 = 8,041.09 : x
  2. Step 2: Convert to fraction form
    12,511.75/17,268.53 = 8,041.09/x
  3. Step 3: Cross multiply
    12,511.75x = 17,268.53 × 8,041.09
  4. Step 4: Simplify right side
    12,511.75x = 138,857,803.90
  5. Step 5: Solve for x
    x = 138,857,803.90/12,511.75
  6. Step 6: Final answer
    x = 11,098.19

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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.