Home / 12,672.96-17,484.40-8,202.36

Finding the Fourth Proportional to 12,672.96, 17,484.40 and 8,202.36

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Solution

The fourth proportional to 12,672.96, 17,484.40 and 8,202.36 is: 11,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.96 : 17,484.40 = 8,202.36 : x
  2. Step 2: Convert to fraction form
    12,672.96/17,484.40 = 8,202.36/x
  3. Step 3: Cross multiply
    12,672.96x = 17,484.40 × 8,202.36
  4. Step 4: Simplify right side
    12,672.96x = 143,413,343.18
  5. Step 5: Solve for x
    x = 143,413,343.18/12,672.96
  6. Step 6: Final answer
    x = 11,316.48

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Half 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.