Home / 11,194.32-15,440.31-9,699.57

Finding the Fourth Proportional to 11,194.32, 15,440.31 and 9,699.57

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Solution

The fourth proportional to 11,194.32, 15,440.31 and 9,699.57 is: 13,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,194.32 : 15,440.31 = 9,699.57 : x
  2. Step 2: Convert to fraction form
    11,194.32/15,440.31 = 9,699.57/x
  3. Step 3: Cross multiply
    11,194.32x = 15,440.31 × 9,699.57
  4. Step 4: Simplify right side
    11,194.32x = 149,764,367.67
  5. Step 5: Solve for x
    x = 149,764,367.67/11,194.32
  6. Step 6: Final answer
    x = 13,378.60

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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.