Home / 12,021.98-18,032.97-3,256.89

Finding the Fourth Proportional to 12,021.98, 18,032.97 and 3,256.89

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Solution

The fourth proportional to 12,021.98, 18,032.97 and 3,256.89 is: 4,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.98 : 18,032.97 = 3,256.89 : x
  2. Step 2: Convert to fraction form
    12,021.98/18,032.97 = 3,256.89/x
  3. Step 3: Cross multiply
    12,021.98x = 18,032.97 × 3,256.89
  4. Step 4: Simplify right side
    12,021.98x = 58,731,479.50
  5. Step 5: Solve for x
    x = 58,731,479.50/12,021.98
  6. Step 6: Final answer
    x = 4,885.34

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.