Home / 7,419.36-11,133.52-3,911.96

Finding the Fourth Proportional to 7,419.36, 11,133.52 and 3,911.96

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Solution

The fourth proportional to 7,419.36, 11,133.52 and 3,911.96 is: 5,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.36 : 11,133.52 = 3,911.96 : x
  2. Step 2: Convert to fraction form
    7,419.36/11,133.52 = 3,911.96/x
  3. Step 3: Cross multiply
    7,419.36x = 11,133.52 × 3,911.96
  4. Step 4: Simplify right side
    7,419.36x = 43,553,809.67
  5. Step 5: Solve for x
    x = 43,553,809.67/7,419.36
  6. Step 6: Final answer
    x = 5,870.29

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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.