Home / 11,286.92-15,539.57-9,690.41

Finding the Fourth Proportional to 11,286.92, 15,539.57 and 9,690.41

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Solution

The fourth proportional to 11,286.92, 15,539.57 and 9,690.41 is: 13,341.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.92 : 15,539.57 = 9,690.41 : x
  2. Step 2: Convert to fraction form
    11,286.92/15,539.57 = 9,690.41/x
  3. Step 3: Cross multiply
    11,286.92x = 15,539.57 × 9,690.41
  4. Step 4: Simplify right side
    11,286.92x = 150,584,804.52
  5. Step 5: Solve for x
    x = 150,584,804.52/11,286.92
  6. Step 6: Final answer
    x = 13,341.53

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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.