Home / 11,972.12-16,520.04-6,666.56

Finding the Fourth Proportional to 11,972.12, 16,520.04 and 6,666.56

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Solution

The fourth proportional to 11,972.12, 16,520.04 and 6,666.56 is: 9,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.12 : 16,520.04 = 6,666.56 : x
  2. Step 2: Convert to fraction form
    11,972.12/16,520.04 = 6,666.56/x
  3. Step 3: Cross multiply
    11,972.12x = 16,520.04 × 6,666.56
  4. Step 4: Simplify right side
    11,972.12x = 110,131,837.86
  5. Step 5: Solve for x
    x = 110,131,837.86/11,972.12
  6. Step 6: Final answer
    x = 9,199.03

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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.