Home / 8,519.60-12,779.09-4,135.88

Finding the Fourth Proportional to 8,519.60, 12,779.09 and 4,135.88

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Solution

The fourth proportional to 8,519.60, 12,779.09 and 4,135.88 is: 6,203.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.60 : 12,779.09 = 4,135.88 : x
  2. Step 2: Convert to fraction form
    8,519.60/12,779.09 = 4,135.88/x
  3. Step 3: Cross multiply
    8,519.60x = 12,779.09 × 4,135.88
  4. Step 4: Simplify right side
    8,519.60x = 52,852,698.17
  5. Step 5: Solve for x
    x = 52,852,698.17/8,519.60
  6. Step 6: Final answer
    x = 6,203.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.