Home / 8,235.12-12,347.60-3,039.60

Finding the Fourth Proportional to 8,235.12, 12,347.60 and 3,039.60

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Solution

The fourth proportional to 8,235.12, 12,347.60 and 3,039.60 is: 4,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.12 : 12,347.60 = 3,039.60 : x
  2. Step 2: Convert to fraction form
    8,235.12/12,347.60 = 3,039.60/x
  3. Step 3: Cross multiply
    8,235.12x = 12,347.60 × 3,039.60
  4. Step 4: Simplify right side
    8,235.12x = 37,531,764.96
  5. Step 5: Solve for x
    x = 37,531,764.96/8,235.12
  6. Step 6: Final answer
    x = 4,557.52

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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.