Home / 9,309.40-13,965.12-2,736.09

Finding the Fourth Proportional to 9,309.40, 13,965.12 and 2,736.09

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Solution

The fourth proportional to 9,309.40, 13,965.12 and 2,736.09 is: 4,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.40 : 13,965.12 = 2,736.09 : x
  2. Step 2: Convert to fraction form
    9,309.40/13,965.12 = 2,736.09/x
  3. Step 3: Cross multiply
    9,309.40x = 13,965.12 × 2,736.09
  4. Step 4: Simplify right side
    9,309.40x = 38,209,877.55
  5. Step 5: Solve for x
    x = 38,209,877.55/9,309.40
  6. Step 6: Final answer
    x = 4,104.44

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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.