Home / 7,803.69-11,705.63-2,609.56

Finding the Fourth Proportional to 7,803.69, 11,705.63 and 2,609.56

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Solution

The fourth proportional to 7,803.69, 11,705.63 and 2,609.56 is: 3,914.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.69 : 11,705.63 = 2,609.56 : x
  2. Step 2: Convert to fraction form
    7,803.69/11,705.63 = 2,609.56/x
  3. Step 3: Cross multiply
    7,803.69x = 11,705.63 × 2,609.56
  4. Step 4: Simplify right side
    7,803.69x = 30,546,579.61
  5. Step 5: Solve for x
    x = 30,546,579.61/7,803.69
  6. Step 6: Final answer
    x = 3,914.38

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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.