Home / 11,135.36-16,705.88-8,208.65

Finding the Fourth Proportional to 11,135.36, 16,705.88 and 8,208.65

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Solution

The fourth proportional to 11,135.36, 16,705.88 and 8,208.65 is: 12,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.36 : 16,705.88 = 8,208.65 : x
  2. Step 2: Convert to fraction form
    11,135.36/16,705.88 = 8,208.65/x
  3. Step 3: Cross multiply
    11,135.36x = 16,705.88 × 8,208.65
  4. Step 4: Simplify right side
    11,135.36x = 137,132,597.29
  5. Step 5: Solve for x
    x = 137,132,597.29/11,135.36
  6. Step 6: Final answer
    x = 12,315.06

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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.