Home / 11,181.32-15,433.66-7,202.42

Finding the Fourth Proportional to 11,181.32, 15,433.66 and 7,202.42

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Solution

The fourth proportional to 11,181.32, 15,433.66 and 7,202.42 is: 9,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.32 : 15,433.66 = 7,202.42 : x
  2. Step 2: Convert to fraction form
    11,181.32/15,433.66 = 7,202.42/x
  3. Step 3: Cross multiply
    11,181.32x = 15,433.66 × 7,202.42
  4. Step 4: Simplify right side
    11,181.32x = 111,159,701.46
  5. Step 5: Solve for x
    x = 111,159,701.46/11,181.32
  6. Step 6: Final answer
    x = 9,941.55

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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.