Home / 12,001.41-18,008.73-5,427.09

Finding the Fourth Proportional to 12,001.41, 18,008.73 and 5,427.09

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Solution

The fourth proportional to 12,001.41, 18,008.73 and 5,427.09 is: 8,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.41 : 18,008.73 = 5,427.09 : x
  2. Step 2: Convert to fraction form
    12,001.41/18,008.73 = 5,427.09/x
  3. Step 3: Cross multiply
    12,001.41x = 18,008.73 × 5,427.09
  4. Step 4: Simplify right side
    12,001.41x = 97,734,998.50
  5. Step 5: Solve for x
    x = 97,734,998.50/12,001.41
  6. Step 6: Final answer
    x = 8,143.63

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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.