Home / 11,181.98-15,431.31-6,146.42

Finding the Fourth Proportional to 11,181.98, 15,431.31 and 6,146.42

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Solution

The fourth proportional to 11,181.98, 15,431.31 and 6,146.42 is: 8,482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.98 : 15,431.31 = 6,146.42 : x
  2. Step 2: Convert to fraction form
    11,181.98/15,431.31 = 6,146.42/x
  3. Step 3: Cross multiply
    11,181.98x = 15,431.31 × 6,146.42
  4. Step 4: Simplify right side
    11,181.98x = 94,847,235.25
  5. Step 5: Solve for x
    x = 94,847,235.25/11,181.98
  6. Step 6: Final answer
    x = 8,482.15

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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.