Home / 11,890.39-16,408.53-6,585.09

Finding the Fourth Proportional to 11,890.39, 16,408.53 and 6,585.09

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Solution

The fourth proportional to 11,890.39, 16,408.53 and 6,585.09 is: 9,087.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.39 : 16,408.53 = 6,585.09 : x
  2. Step 2: Convert to fraction form
    11,890.39/16,408.53 = 6,585.09/x
  3. Step 3: Cross multiply
    11,890.39x = 16,408.53 × 6,585.09
  4. Step 4: Simplify right side
    11,890.39x = 108,051,605.80
  5. Step 5: Solve for x
    x = 108,051,605.80/11,890.39
  6. Step 6: Final answer
    x = 9,087.31

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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.