Home / 11,819.23-16,309.56-6,513.87

Finding the Fourth Proportional to 11,819.23, 16,309.56 and 6,513.87

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Solution

The fourth proportional to 11,819.23, 16,309.56 and 6,513.87 is: 8,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.23 : 16,309.56 = 6,513.87 : x
  2. Step 2: Convert to fraction form
    11,819.23/16,309.56 = 6,513.87/x
  3. Step 3: Cross multiply
    11,819.23x = 16,309.56 × 6,513.87
  4. Step 4: Simplify right side
    11,819.23x = 106,238,353.60
  5. Step 5: Solve for x
    x = 106,238,353.60/11,819.23
  6. Step 6: Final answer
    x = 8,988.60

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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.