Home / 6,918.09-10,366.20-6,910.80

Finding the Fourth Proportional to 6,918.09, 10,366.20 and 6,910.80

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Solution

The fourth proportional to 6,918.09, 10,366.20 and 6,910.80 is: 10,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.09 : 10,366.20 = 6,910.80 : x
  2. Step 2: Convert to fraction form
    6,918.09/10,366.20 = 6,910.80/x
  3. Step 3: Cross multiply
    6,918.09x = 10,366.20 × 6,910.80
  4. Step 4: Simplify right side
    6,918.09x = 71,638,734.96
  5. Step 5: Solve for x
    x = 71,638,734.96/6,918.09
  6. Step 6: Final answer
    x = 10,355.28

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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.