Home / 12,609.25-17,402.84-9,619.44

Finding the Fourth Proportional to 12,609.25, 17,402.84 and 9,619.44

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Solution

The fourth proportional to 12,609.25, 17,402.84 and 9,619.44 is: 13,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.25 : 17,402.84 = 9,619.44 : x
  2. Step 2: Convert to fraction form
    12,609.25/17,402.84 = 9,619.44/x
  3. Step 3: Cross multiply
    12,609.25x = 17,402.84 × 9,619.44
  4. Step 4: Simplify right side
    12,609.25x = 167,405,575.21
  5. Step 5: Solve for x
    x = 167,405,575.21/12,609.25
  6. Step 6: Final answer
    x = 13,276.41

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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.