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Finding the Fourth Proportional to 12,028.53, 18,045.53 and 5,456.60

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Solution

The fourth proportional to 12,028.53, 18,045.53 and 5,456.60 is: 8,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,028.53 : 18,045.53 = 5,456.60 : x
  2. Step 2: Convert to fraction form
    12,028.53/18,045.53 = 5,456.60/x
  3. Step 3: Cross multiply
    12,028.53x = 18,045.53 × 5,456.60
  4. Step 4: Simplify right side
    12,028.53x = 98,467,239.00
  5. Step 5: Solve for x
    x = 98,467,239.00/12,028.53
  6. Step 6: Final answer
    x = 8,186.14

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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.