Home / 11,796.18-16,279.20-6,491.40

Finding the Fourth Proportional to 11,796.18, 16,279.20 and 6,491.40

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Solution

The fourth proportional to 11,796.18, 16,279.20 and 6,491.40 is: 8,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,796.18 : 16,279.20 = 6,491.40 : x
  2. Step 2: Convert to fraction form
    11,796.18/16,279.20 = 6,491.40/x
  3. Step 3: Cross multiply
    11,796.18x = 16,279.20 × 6,491.40
  4. Step 4: Simplify right side
    11,796.18x = 105,674,798.88
  5. Step 5: Solve for x
    x = 105,674,798.88/11,796.18
  6. Step 6: Final answer
    x = 8,958.39

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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.