Home / 6,629.80-9,147.18-4,113.88

Finding the Fourth Proportional to 6,629.80, 9,147.18 and 4,113.88

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Solution

The fourth proportional to 6,629.80, 9,147.18 and 4,113.88 is: 5,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.80 : 9,147.18 = 4,113.88 : x
  2. Step 2: Convert to fraction form
    6,629.80/9,147.18 = 4,113.88/x
  3. Step 3: Cross multiply
    6,629.80x = 9,147.18 × 4,113.88
  4. Step 4: Simplify right side
    6,629.80x = 37,630,400.86
  5. Step 5: Solve for x
    x = 37,630,400.86/6,629.80
  6. Step 6: Final answer
    x = 5,675.95

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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.