Home / 11,181.62-15,424.26-6,930.74

Finding the Fourth Proportional to 11,181.62, 15,424.26 and 6,930.74

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Solution

The fourth proportional to 11,181.62, 15,424.26 and 6,930.74 is: 9,560.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.62 : 15,424.26 = 6,930.74 : x
  2. Step 2: Convert to fraction form
    11,181.62/15,424.26 = 6,930.74/x
  3. Step 3: Cross multiply
    11,181.62x = 15,424.26 × 6,930.74
  4. Step 4: Simplify right side
    11,181.62x = 106,901,548.32
  5. Step 5: Solve for x
    x = 106,901,548.32/11,181.62
  6. Step 6: Final answer
    x = 9,560.47

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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.