Home / 11,965.89-16,510.07-6,861.98

Finding the Fourth Proportional to 11,965.89, 16,510.07 and 6,861.98

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Solution

The fourth proportional to 11,965.89, 16,510.07 and 6,861.98 is: 9,467.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.89 : 16,510.07 = 6,861.98 : x
  2. Step 2: Convert to fraction form
    11,965.89/16,510.07 = 6,861.98/x
  3. Step 3: Cross multiply
    11,965.89x = 16,510.07 × 6,861.98
  4. Step 4: Simplify right side
    11,965.89x = 113,291,770.14
  5. Step 5: Solve for x
    x = 113,291,770.14/11,965.89
  6. Step 6: Final answer
    x = 9,467.89

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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.