Home / 12,187.26-16,817.61-6,881.34

Finding the Fourth Proportional to 12,187.26, 16,817.61 and 6,881.34

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Solution

The fourth proportional to 12,187.26, 16,817.61 and 6,881.34 is: 9,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.26 : 16,817.61 = 6,881.34 : x
  2. Step 2: Convert to fraction form
    12,187.26/16,817.61 = 6,881.34/x
  3. Step 3: Cross multiply
    12,187.26x = 16,817.61 × 6,881.34
  4. Step 4: Simplify right side
    12,187.26x = 115,727,692.40
  5. Step 5: Solve for x
    x = 115,727,692.40/12,187.26
  6. Step 6: Final answer
    x = 9,495.79

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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.