Home / 8,111.74-11,195.94-5,125.68

Finding the Fourth Proportional to 8,111.74, 11,195.94 and 5,125.68

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Solution

The fourth proportional to 8,111.74, 11,195.94 and 5,125.68 is: 7,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.74 : 11,195.94 = 5,125.68 : x
  2. Step 2: Convert to fraction form
    8,111.74/11,195.94 = 5,125.68/x
  3. Step 3: Cross multiply
    8,111.74x = 11,195.94 × 5,125.68
  4. Step 4: Simplify right side
    8,111.74x = 57,386,805.74
  5. Step 5: Solve for x
    x = 57,386,805.74/8,111.74
  6. Step 6: Final answer
    x = 7,074.54

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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.