Home / 6,820.80-10,221.12-4,513.92

Finding the Fourth Proportional to 6,820.80, 10,221.12 and 4,513.92

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Solution

The fourth proportional to 6,820.80, 10,221.12 and 4,513.92 is: 6,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.80 : 10,221.12 = 4,513.92 : x
  2. Step 2: Convert to fraction form
    6,820.80/10,221.12 = 4,513.92/x
  3. Step 3: Cross multiply
    6,820.80x = 10,221.12 × 4,513.92
  4. Step 4: Simplify right side
    6,820.80x = 46,137,317.99
  5. Step 5: Solve for x
    x = 46,137,317.99/6,820.80
  6. Step 6: Final answer
    x = 6,764.21

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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.