Home / 6,817.96-9,408.72-4,129.30

Finding the Fourth Proportional to 6,817.96, 9,408.72 and 4,129.30

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Solution

The fourth proportional to 6,817.96, 9,408.72 and 4,129.30 is: 5,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,817.96 : 9,408.72 = 4,129.30 : x
  2. Step 2: Convert to fraction form
    6,817.96/9,408.72 = 4,129.30/x
  3. Step 3: Cross multiply
    6,817.96x = 9,408.72 × 4,129.30
  4. Step 4: Simplify right side
    6,817.96x = 38,851,427.50
  5. Step 5: Solve for x
    x = 38,851,427.50/6,817.96
  6. Step 6: Final answer
    x = 5,698.39

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Half scale
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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.