Home / 8,255.39-11,392.37-4,478.47

Finding the Fourth Proportional to 8,255.39, 11,392.37 and 4,478.47

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Solution

The fourth proportional to 8,255.39, 11,392.37 and 4,478.47 is: 6,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.39 : 11,392.37 = 4,478.47 : x
  2. Step 2: Convert to fraction form
    8,255.39/11,392.37 = 4,478.47/x
  3. Step 3: Cross multiply
    8,255.39x = 11,392.37 × 4,478.47
  4. Step 4: Simplify right side
    8,255.39x = 51,020,353.19
  5. Step 5: Solve for x
    x = 51,020,353.19/8,255.39
  6. Step 6: Final answer
    x = 6,180.25

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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.