Home / 6,618.50-9,135.18-3,825.62

Finding the Fourth Proportional to 6,618.50, 9,135.18 and 3,825.62

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Solution

The fourth proportional to 6,618.50, 9,135.18 and 3,825.62 is: 5,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.50 : 9,135.18 = 3,825.62 : x
  2. Step 2: Convert to fraction form
    6,618.50/9,135.18 = 3,825.62/x
  3. Step 3: Cross multiply
    6,618.50x = 9,135.18 × 3,825.62
  4. Step 4: Simplify right side
    6,618.50x = 34,947,727.31
  5. Step 5: Solve for x
    x = 34,947,727.31/6,618.50
  6. Step 6: Final answer
    x = 5,280.31

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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.