Home / 11,840.12-16,340.32-6,805.16

Finding the Fourth Proportional to 11,840.12, 16,340.32 and 6,805.16

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Solution

The fourth proportional to 11,840.12, 16,340.32 and 6,805.16 is: 9,391.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.12 : 16,340.32 = 6,805.16 : x
  2. Step 2: Convert to fraction form
    11,840.12/16,340.32 = 6,805.16/x
  3. Step 3: Cross multiply
    11,840.12x = 16,340.32 × 6,805.16
  4. Step 4: Simplify right side
    11,840.12x = 111,198,492.05
  5. Step 5: Solve for x
    x = 111,198,492.05/11,840.12
  6. Step 6: Final answer
    x = 9,391.67

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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.