Home / 12,843.36-19,265.04-11,220.12

Finding the Fourth Proportional to 12,843.36, 19,265.04 and 11,220.12

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Solution

The fourth proportional to 12,843.36, 19,265.04 and 11,220.12 is: 16,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.36 : 19,265.04 = 11,220.12 : x
  2. Step 2: Convert to fraction form
    12,843.36/19,265.04 = 11,220.12/x
  3. Step 3: Cross multiply
    12,843.36x = 19,265.04 × 11,220.12
  4. Step 4: Simplify right side
    12,843.36x = 216,156,060.60
  5. Step 5: Solve for x
    x = 216,156,060.60/12,843.36
  6. Step 6: Final answer
    x = 16,830.18

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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.