Home / 11,981.21-16,534.11-6,675.89

Finding the Fourth Proportional to 11,981.21, 16,534.11 and 6,675.89

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Solution

The fourth proportional to 11,981.21, 16,534.11 and 6,675.89 is: 9,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.21 : 16,534.11 = 6,675.89 : x
  2. Step 2: Convert to fraction form
    11,981.21/16,534.11 = 6,675.89/x
  3. Step 3: Cross multiply
    11,981.21x = 16,534.11 × 6,675.89
  4. Step 4: Simplify right side
    11,981.21x = 110,379,899.61
  5. Step 5: Solve for x
    x = 110,379,899.61/11,981.21
  6. Step 6: Final answer
    x = 9,212.75

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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.