Home / 12,295.08-16,968-6,990.48

Finding the Fourth Proportional to 12,295.08, 16,968 and 6,990.48

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Solution

The fourth proportional to 12,295.08, 16,968 and 6,990.48 is: 9,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.08 : 16,968 = 6,990.48 : x
  2. Step 2: Convert to fraction form
    12,295.08/16,968 = 6,990.48/x
  3. Step 3: Cross multiply
    12,295.08x = 16,968 × 6,990.48
  4. Step 4: Simplify right side
    12,295.08x = 118,614,464.64
  5. Step 5: Solve for x
    x = 118,614,464.64/12,295.08
  6. Step 6: Final answer
    x = 9,647.31

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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.