Home / 11,729.40-17,591.46-3,409.32

Finding the Fourth Proportional to 11,729.40, 17,591.46 and 3,409.32

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Solution

The fourth proportional to 11,729.40, 17,591.46 and 3,409.32 is: 5,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.40 : 17,591.46 = 3,409.32 : x
  2. Step 2: Convert to fraction form
    11,729.40/17,591.46 = 3,409.32/x
  3. Step 3: Cross multiply
    11,729.40x = 17,591.46 × 3,409.32
  4. Step 4: Simplify right side
    11,729.40x = 59,974,916.41
  5. Step 5: Solve for x
    x = 59,974,916.41/11,729.40
  6. Step 6: Final answer
    x = 5,113.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.