Home / 11,805.18-16,291.01-6,499.88

Finding the Fourth Proportional to 11,805.18, 16,291.01 and 6,499.88

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Solution

The fourth proportional to 11,805.18, 16,291.01 and 6,499.88 is: 8,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.18 : 16,291.01 = 6,499.88 : x
  2. Step 2: Convert to fraction form
    11,805.18/16,291.01 = 6,499.88/x
  3. Step 3: Cross multiply
    11,805.18x = 16,291.01 × 6,499.88
  4. Step 4: Simplify right side
    11,805.18x = 105,889,610.08
  5. Step 5: Solve for x
    x = 105,889,610.08/11,805.18
  6. Step 6: Final answer
    x = 8,969.76

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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.