Home / 11,890.40-16,408.05-6,584.90

Finding the Fourth Proportional to 11,890.40, 16,408.05 and 6,584.90

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Solution

The fourth proportional to 11,890.40, 16,408.05 and 6,584.90 is: 9,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.40 : 16,408.05 = 6,584.90 : x
  2. Step 2: Convert to fraction form
    11,890.40/16,408.05 = 6,584.90/x
  3. Step 3: Cross multiply
    11,890.40x = 16,408.05 × 6,584.90
  4. Step 4: Simplify right side
    11,890.40x = 108,045,368.45
  5. Step 5: Solve for x
    x = 108,045,368.45/11,890.40
  6. Step 6: Final answer
    x = 9,086.77

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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.