Home / 7,419.40-11,127.37-3,473.38

Finding the Fourth Proportional to 7,419.40, 11,127.37 and 3,473.38

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Solution

The fourth proportional to 7,419.40, 11,127.37 and 3,473.38 is: 5,209.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.40 : 11,127.37 = 3,473.38 : x
  2. Step 2: Convert to fraction form
    7,419.40/11,127.37 = 3,473.38/x
  3. Step 3: Cross multiply
    7,419.40x = 11,127.37 × 3,473.38
  4. Step 4: Simplify right side
    7,419.40x = 38,649,511.41
  5. Step 5: Solve for x
    x = 38,649,511.41/7,419.40
  6. Step 6: Final answer
    x = 5,209.25

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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.