Home / 8,085.14-12,130.67-3,406.32

Finding the Fourth Proportional to 8,085.14, 12,130.67 and 3,406.32

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Solution

The fourth proportional to 8,085.14, 12,130.67 and 3,406.32 is: 5,110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.14 : 12,130.67 = 3,406.32 : x
  2. Step 2: Convert to fraction form
    8,085.14/12,130.67 = 3,406.32/x
  3. Step 3: Cross multiply
    8,085.14x = 12,130.67 × 3,406.32
  4. Step 4: Simplify right side
    8,085.14x = 41,320,943.83
  5. Step 5: Solve for x
    x = 41,320,943.83/8,085.14
  6. Step 6: Final answer
    x = 5,110.73

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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.