Home / 8,085.06-11,157.84-5,391.63

Finding the Fourth Proportional to 8,085.06, 11,157.84 and 5,391.63

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Solution

The fourth proportional to 8,085.06, 11,157.84 and 5,391.63 is: 7,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.06 : 11,157.84 = 5,391.63 : x
  2. Step 2: Convert to fraction form
    8,085.06/11,157.84 = 5,391.63/x
  3. Step 3: Cross multiply
    8,085.06x = 11,157.84 × 5,391.63
  4. Step 4: Simplify right side
    8,085.06x = 60,158,944.88
  5. Step 5: Solve for x
    x = 60,158,944.88/8,085.06
  6. Step 6: Final answer
    x = 7,440.75

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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.