Home / 11,819.08-16,309.58-6,513.93

Finding the Fourth Proportional to 11,819.08, 16,309.58 and 6,513.93

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Solution

The fourth proportional to 11,819.08, 16,309.58 and 6,513.93 is: 8,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.08 : 16,309.58 = 6,513.93 : x
  2. Step 2: Convert to fraction form
    11,819.08/16,309.58 = 6,513.93/x
  3. Step 3: Cross multiply
    11,819.08x = 16,309.58 × 6,513.93
  4. Step 4: Simplify right side
    11,819.08x = 106,239,478.73
  5. Step 5: Solve for x
    x = 106,239,478.73/11,819.08
  6. Step 6: Final answer
    x = 8,988.81

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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.