Home / 7,806.08-11,712.34-4,107.40

Finding the Fourth Proportional to 7,806.08, 11,712.34 and 4,107.40

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Solution

The fourth proportional to 7,806.08, 11,712.34 and 4,107.40 is: 6,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806.08 : 11,712.34 = 4,107.40 : x
  2. Step 2: Convert to fraction form
    7,806.08/11,712.34 = 4,107.40/x
  3. Step 3: Cross multiply
    7,806.08x = 11,712.34 × 4,107.40
  4. Step 4: Simplify right side
    7,806.08x = 48,107,265.32
  5. Step 5: Solve for x
    x = 48,107,265.32/7,806.08
  6. Step 6: Final answer
    x = 6,162.79

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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.