Home / 12,482.34-17,219.68-8,447.73

Finding the Fourth Proportional to 12,482.34, 17,219.68 and 8,447.73

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Solution

The fourth proportional to 12,482.34, 17,219.68 and 8,447.73 is: 11,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.34 : 17,219.68 = 8,447.73 : x
  2. Step 2: Convert to fraction form
    12,482.34/17,219.68 = 8,447.73/x
  3. Step 3: Cross multiply
    12,482.34x = 17,219.68 × 8,447.73
  4. Step 4: Simplify right side
    12,482.34x = 145,467,207.33
  5. Step 5: Solve for x
    x = 145,467,207.33/12,482.34
  6. Step 6: Final answer
    x = 11,653.84

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Double scale
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Similar ratio
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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.