Home / 7,643.27-11,439.39-4,355.48

Finding the Fourth Proportional to 7,643.27, 11,439.39 and 4,355.48

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Solution

The fourth proportional to 7,643.27, 11,439.39 and 4,355.48 is: 6,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.27 : 11,439.39 = 4,355.48 : x
  2. Step 2: Convert to fraction form
    7,643.27/11,439.39 = 4,355.48/x
  3. Step 3: Cross multiply
    7,643.27x = 11,439.39 × 4,355.48
  4. Step 4: Simplify right side
    7,643.27x = 49,824,003.72
  5. Step 5: Solve for x
    x = 49,824,003.72/7,643.27
  6. Step 6: Final answer
    x = 6,518.68

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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.