Home / 7,620.28-11,419.48-4,326.41

Finding the Fourth Proportional to 7,620.28, 11,419.48 and 4,326.41

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Solution

The fourth proportional to 7,620.28, 11,419.48 and 4,326.41 is: 6,483.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.28 : 11,419.48 = 4,326.41 : x
  2. Step 2: Convert to fraction form
    7,620.28/11,419.48 = 4,326.41/x
  3. Step 3: Cross multiply
    7,620.28x = 11,419.48 × 4,326.41
  4. Step 4: Simplify right side
    7,620.28x = 49,405,386.42
  5. Step 5: Solve for x
    x = 49,405,386.42/7,620.28
  6. Step 6: Final answer
    x = 6,483.41

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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.