Home / 13,292.20-19,928.70-7,450.60

Finding the Fourth Proportional to 13,292.20, 19,928.70 and 7,450.60

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Solution

The fourth proportional to 13,292.20, 19,928.70 and 7,450.60 is: 11,170.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.20 : 19,928.70 = 7,450.60 : x
  2. Step 2: Convert to fraction form
    13,292.20/19,928.70 = 7,450.60/x
  3. Step 3: Cross multiply
    13,292.20x = 19,928.70 × 7,450.60
  4. Step 4: Simplify right side
    13,292.20x = 148,480,772.22
  5. Step 5: Solve for x
    x = 148,480,772.22/13,292.20
  6. Step 6: Final answer
    x = 11,170.52

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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.