Home / 11,819.72-16,310.57-6,513.62

Finding the Fourth Proportional to 11,819.72, 16,310.57 and 6,513.62

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Solution

The fourth proportional to 11,819.72, 16,310.57 and 6,513.62 is: 8,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.72 : 16,310.57 = 6,513.62 : x
  2. Step 2: Convert to fraction form
    11,819.72/16,310.57 = 6,513.62/x
  3. Step 3: Cross multiply
    11,819.72x = 16,310.57 × 6,513.62
  4. Step 4: Simplify right side
    11,819.72x = 106,240,740.84
  5. Step 5: Solve for x
    x = 106,240,740.84/11,819.72
  6. Step 6: Final answer
    x = 8,988.43

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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.