Home / 11,268.06-15,540.45-8,442.06

Finding the Fourth Proportional to 11,268.06, 15,540.45 and 8,442.06

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Solution

The fourth proportional to 11,268.06, 15,540.45 and 8,442.06 is: 11,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,268.06 : 15,540.45 = 8,442.06 : x
  2. Step 2: Convert to fraction form
    11,268.06/15,540.45 = 8,442.06/x
  3. Step 3: Cross multiply
    11,268.06x = 15,540.45 × 8,442.06
  4. Step 4: Simplify right side
    11,268.06x = 131,193,411.33
  5. Step 5: Solve for x
    x = 131,193,411.33/11,268.06
  6. Step 6: Final answer
    x = 11,642.95

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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.