Home / 7,411.07-11,109.31-3,518.21

Finding the Fourth Proportional to 7,411.07, 11,109.31 and 3,518.21

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Solution

The fourth proportional to 7,411.07, 11,109.31 and 3,518.21 is: 5,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.07 : 11,109.31 = 3,518.21 : x
  2. Step 2: Convert to fraction form
    7,411.07/11,109.31 = 3,518.21/x
  3. Step 3: Cross multiply
    7,411.07x = 11,109.31 × 3,518.21
  4. Step 4: Simplify right side
    7,411.07x = 39,084,885.54
  5. Step 5: Solve for x
    x = 39,084,885.54/7,411.07
  6. Step 6: Final answer
    x = 5,273.85

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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.