Home / 8,940.48-12,336.96-5,216.64

Finding the Fourth Proportional to 8,940.48, 12,336.96 and 5,216.64

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Solution

The fourth proportional to 8,940.48, 12,336.96 and 5,216.64 is: 7,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.48 : 12,336.96 = 5,216.64 : x
  2. Step 2: Convert to fraction form
    8,940.48/12,336.96 = 5,216.64/x
  3. Step 3: Cross multiply
    8,940.48x = 12,336.96 × 5,216.64
  4. Step 4: Simplify right side
    8,940.48x = 64,357,479.01
  5. Step 5: Solve for x
    x = 64,357,479.01/8,940.48
  6. Step 6: Final answer
    x = 7,198.44

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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.