Home / 12,083.20-16,675.53-6,778.31

Finding the Fourth Proportional to 12,083.20, 16,675.53 and 6,778.31

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Solution

The fourth proportional to 12,083.20, 16,675.53 and 6,778.31 is: 9,354.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.20 : 16,675.53 = 6,778.31 : x
  2. Step 2: Convert to fraction form
    12,083.20/16,675.53 = 6,778.31/x
  3. Step 3: Cross multiply
    12,083.20x = 16,675.53 × 6,778.31
  4. Step 4: Simplify right side
    12,083.20x = 113,031,911.75
  5. Step 5: Solve for x
    x = 113,031,911.75/12,083.20
  6. Step 6: Final answer
    x = 9,354.47

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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.