Home / 6,643.20-9,174.96-4,515.60

Finding the Fourth Proportional to 6,643.20, 9,174.96 and 4,515.60

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Solution

The fourth proportional to 6,643.20, 9,174.96 and 4,515.60 is: 6,236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.20 : 9,174.96 = 4,515.60 : x
  2. Step 2: Convert to fraction form
    6,643.20/9,174.96 = 4,515.60/x
  3. Step 3: Cross multiply
    6,643.20x = 9,174.96 × 4,515.60
  4. Step 4: Simplify right side
    6,643.20x = 41,430,449.38
  5. Step 5: Solve for x
    x = 41,430,449.38/6,643.20
  6. Step 6: Final answer
    x = 6,236.52

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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.