Home / 11,216.15-16,805.76-8,891.09

Finding the Fourth Proportional to 11,216.15, 16,805.76 and 8,891.09

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Solution

The fourth proportional to 11,216.15, 16,805.76 and 8,891.09 is: 13,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.15 : 16,805.76 = 8,891.09 : x
  2. Step 2: Convert to fraction form
    11,216.15/16,805.76 = 8,891.09/x
  3. Step 3: Cross multiply
    11,216.15x = 16,805.76 × 8,891.09
  4. Step 4: Simplify right side
    11,216.15x = 149,421,440.65
  5. Step 5: Solve for x
    x = 149,421,440.65/11,216.15
  6. Step 6: Final answer
    x = 13,322.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.