Home / 8,555.50-11,806.79-4,778.47

Finding the Fourth Proportional to 8,555.50, 11,806.79 and 4,778.47

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Solution

The fourth proportional to 8,555.50, 11,806.79 and 4,778.47 is: 6,594.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.50 : 11,806.79 = 4,778.47 : x
  2. Step 2: Convert to fraction form
    8,555.50/11,806.79 = 4,778.47/x
  3. Step 3: Cross multiply
    8,555.50x = 11,806.79 × 4,778.47
  4. Step 4: Simplify right side
    8,555.50x = 56,418,308.89
  5. Step 5: Solve for x
    x = 56,418,308.89/8,555.50
  6. Step 6: Final answer
    x = 6,594.39

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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.