Home / 11,890.12-16,406.76-6,584.80

Finding the Fourth Proportional to 11,890.12, 16,406.76 and 6,584.80

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Solution

The fourth proportional to 11,890.12, 16,406.76 and 6,584.80 is: 9,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.12 : 16,406.76 = 6,584.80 : x
  2. Step 2: Convert to fraction form
    11,890.12/16,406.76 = 6,584.80/x
  3. Step 3: Cross multiply
    11,890.12x = 16,406.76 × 6,584.80
  4. Step 4: Simplify right side
    11,890.12x = 108,035,233.25
  5. Step 5: Solve for x
    x = 108,035,233.25/11,890.12
  6. Step 6: Final answer
    x = 9,086.13

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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.