Home / 8,255.49-11,392.48-4,478.59

Finding the Fourth Proportional to 8,255.49, 11,392.48 and 4,478.59

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Solution

The fourth proportional to 8,255.49, 11,392.48 and 4,478.59 is: 6,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.49 : 11,392.48 = 4,478.59 : x
  2. Step 2: Convert to fraction form
    8,255.49/11,392.48 = 4,478.59/x
  3. Step 3: Cross multiply
    8,255.49x = 11,392.48 × 4,478.59
  4. Step 4: Simplify right side
    8,255.49x = 51,022,247.00
  5. Step 5: Solve for x
    x = 51,022,247.00/8,255.49
  6. Step 6: Final answer
    x = 6,180.40

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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.