Home / 8,555.41-11,806.34-4,778.64

Finding the Fourth Proportional to 8,555.41, 11,806.34 and 4,778.64

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Solution

The fourth proportional to 8,555.41, 11,806.34 and 4,778.64 is: 6,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.41 : 11,806.34 = 4,778.64 : x
  2. Step 2: Convert to fraction form
    8,555.41/11,806.34 = 4,778.64/x
  3. Step 3: Cross multiply
    8,555.41x = 11,806.34 × 4,778.64
  4. Step 4: Simplify right side
    8,555.41x = 56,418,224.68
  5. Step 5: Solve for x
    x = 56,418,224.68/8,555.41
  6. Step 6: Final answer
    x = 6,594.45

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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.