Home / 11,181.32-15,433.45-7,455.32

Finding the Fourth Proportional to 11,181.32, 15,433.45 and 7,455.32

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Solution

The fourth proportional to 11,181.32, 15,433.45 and 7,455.32 is: 10,290.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.32 : 15,433.45 = 7,455.32 : x
  2. Step 2: Convert to fraction form
    11,181.32/15,433.45 = 7,455.32/x
  3. Step 3: Cross multiply
    11,181.32x = 15,433.45 × 7,455.32
  4. Step 4: Simplify right side
    11,181.32x = 115,061,231.29
  5. Step 5: Solve for x
    x = 115,061,231.29/11,181.32
  6. Step 6: Final answer
    x = 10,290.49

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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.