Home / 7,107.36-9,806.40-3,962.76

Finding the Fourth Proportional to 7,107.36, 9,806.40 and 3,962.76

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Solution

The fourth proportional to 7,107.36, 9,806.40 and 3,962.76 is: 5,467.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.36 : 9,806.40 = 3,962.76 : x
  2. Step 2: Convert to fraction form
    7,107.36/9,806.40 = 3,962.76/x
  3. Step 3: Cross multiply
    7,107.36x = 9,806.40 × 3,962.76
  4. Step 4: Simplify right side
    7,107.36x = 38,860,409.66
  5. Step 5: Solve for x
    x = 38,860,409.66/7,107.36
  6. Step 6: Final answer
    x = 5,467.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.