Home / 7,631.55-11,451.57-4,121.48

Finding the Fourth Proportional to 7,631.55, 11,451.57 and 4,121.48

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Solution

The fourth proportional to 7,631.55, 11,451.57 and 4,121.48 is: 6,184.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.55 : 11,451.57 = 4,121.48 : x
  2. Step 2: Convert to fraction form
    7,631.55/11,451.57 = 4,121.48/x
  3. Step 3: Cross multiply
    7,631.55x = 11,451.57 × 4,121.48
  4. Step 4: Simplify right side
    7,631.55x = 47,197,416.72
  5. Step 5: Solve for x
    x = 47,197,416.72/7,631.55
  6. Step 6: Final answer
    x = 6,184.52

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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.