Home / 11,928.60-16,460.46-7,212.60

Finding the Fourth Proportional to 11,928.60, 16,460.46 and 7,212.60

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Solution

The fourth proportional to 11,928.60, 16,460.46 and 7,212.60 is: 9,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.60 : 16,460.46 = 7,212.60 : x
  2. Step 2: Convert to fraction form
    11,928.60/16,460.46 = 7,212.60/x
  3. Step 3: Cross multiply
    11,928.60x = 16,460.46 × 7,212.60
  4. Step 4: Simplify right side
    11,928.60x = 118,722,713.80
  5. Step 5: Solve for x
    x = 118,722,713.80/11,928.60
  6. Step 6: Final answer
    x = 9,952.78

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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.