Home / 8,555.66-11,806.68-4,778.89

Finding the Fourth Proportional to 8,555.66, 11,806.68 and 4,778.89

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Solution

The fourth proportional to 8,555.66, 11,806.68 and 4,778.89 is: 6,594.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.66 : 11,806.68 = 4,778.89 : x
  2. Step 2: Convert to fraction form
    8,555.66/11,806.68 = 4,778.89/x
  3. Step 3: Cross multiply
    8,555.66x = 11,806.68 × 4,778.89
  4. Step 4: Simplify right side
    8,555.66x = 56,422,824.99
  5. Step 5: Solve for x
    x = 56,422,824.99/8,555.66
  6. Step 6: Final answer
    x = 6,594.80

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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.