Home / 12,027.12-16,596.80-6,720.90

Finding the Fourth Proportional to 12,027.12, 16,596.80 and 6,720.90

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Solution

The fourth proportional to 12,027.12, 16,596.80 and 6,720.90 is: 9,274.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,027.12 : 16,596.80 = 6,720.90 : x
  2. Step 2: Convert to fraction form
    12,027.12/16,596.80 = 6,720.90/x
  3. Step 3: Cross multiply
    12,027.12x = 16,596.80 × 6,720.90
  4. Step 4: Simplify right side
    12,027.12x = 111,545,433.12
  5. Step 5: Solve for x
    x = 111,545,433.12/12,027.12
  6. Step 6: Final answer
    x = 9,274.49

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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.