Home / 7,818.96-11,729.36-3,435.88

Finding the Fourth Proportional to 7,818.96, 11,729.36 and 3,435.88

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Solution

The fourth proportional to 7,818.96, 11,729.36 and 3,435.88 is: 5,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.96 : 11,729.36 = 3,435.88 : x
  2. Step 2: Convert to fraction form
    7,818.96/11,729.36 = 3,435.88/x
  3. Step 3: Cross multiply
    7,818.96x = 11,729.36 × 3,435.88
  4. Step 4: Simplify right side
    7,818.96x = 40,300,673.44
  5. Step 5: Solve for x
    x = 40,300,673.44/7,818.96
  6. Step 6: Final answer
    x = 5,154.22

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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.