Home / 11,890.62-16,408.89-6,854.85

Finding the Fourth Proportional to 11,890.62, 16,408.89 and 6,854.85

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Solution

The fourth proportional to 11,890.62, 16,408.89 and 6,854.85 is: 9,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.62 : 16,408.89 = 6,854.85 : x
  2. Step 2: Convert to fraction form
    11,890.62/16,408.89 = 6,854.85/x
  3. Step 3: Cross multiply
    11,890.62x = 16,408.89 × 6,854.85
  4. Step 4: Simplify right side
    11,890.62x = 112,480,479.62
  5. Step 5: Solve for x
    x = 112,480,479.62/11,890.62
  6. Step 6: Final answer
    x = 9,459.60

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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.