Home / 11,910.85-16,436.32-6,605.35

Finding the Fourth Proportional to 11,910.85, 16,436.32 and 6,605.35

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Solution

The fourth proportional to 11,910.85, 16,436.32 and 6,605.35 is: 9,115.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.85 : 16,436.32 = 6,605.35 : x
  2. Step 2: Convert to fraction form
    11,910.85/16,436.32 = 6,605.35/x
  3. Step 3: Cross multiply
    11,910.85x = 16,436.32 × 6,605.35
  4. Step 4: Simplify right side
    11,910.85x = 108,567,588.71
  5. Step 5: Solve for x
    x = 108,567,588.71/11,910.85
  6. Step 6: Final answer
    x = 9,115.02

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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.