Home / 12,516.75-17,181.08-11,068.70

Finding the Fourth Proportional to 12,516.75, 17,181.08 and 11,068.70

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Solution

The fourth proportional to 12,516.75, 17,181.08 and 11,068.70 is: 15,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.75 : 17,181.08 = 11,068.70 : x
  2. Step 2: Convert to fraction form
    12,516.75/17,181.08 = 11,068.70/x
  3. Step 3: Cross multiply
    12,516.75x = 17,181.08 × 11,068.70
  4. Step 4: Simplify right side
    12,516.75x = 190,172,078.95
  5. Step 5: Solve for x
    x = 190,172,078.95/12,516.75
  6. Step 6: Final answer
    x = 15,193.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.