Home / 11,910.39-16,434.57-6,605.25

Finding the Fourth Proportional to 11,910.39, 16,434.57 and 6,605.25

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Solution

The fourth proportional to 11,910.39, 16,434.57 and 6,605.25 is: 9,114.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.39 : 16,434.57 = 6,605.25 : x
  2. Step 2: Convert to fraction form
    11,910.39/16,434.57 = 6,605.25/x
  3. Step 3: Cross multiply
    11,910.39x = 16,434.57 × 6,605.25
  4. Step 4: Simplify right side
    11,910.39x = 108,554,443.49
  5. Step 5: Solve for x
    x = 108,554,443.49/11,910.39
  6. Step 6: Final answer
    x = 9,114.26

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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.