Home / 11,185.61-15,435.83-6,149.84

Finding the Fourth Proportional to 11,185.61, 15,435.83 and 6,149.84

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Solution

The fourth proportional to 11,185.61, 15,435.83 and 6,149.84 is: 8,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.61 : 15,435.83 = 6,149.84 : x
  2. Step 2: Convert to fraction form
    11,185.61/15,435.83 = 6,149.84/x
  3. Step 3: Cross multiply
    11,185.61x = 15,435.83 × 6,149.84
  4. Step 4: Simplify right side
    11,185.61x = 94,927,884.77
  5. Step 5: Solve for x
    x = 94,927,884.77/11,185.61
  6. Step 6: Final answer
    x = 8,486.61

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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.