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Finding the Fourth Proportional to 12,028.60, 18,036.06 and 9,556.12

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Solution

The fourth proportional to 12,028.60, 18,036.06 and 9,556.12 is: 14,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,028.60 : 18,036.06 = 9,556.12 : x
  2. Step 2: Convert to fraction form
    12,028.60/18,036.06 = 9,556.12/x
  3. Step 3: Cross multiply
    12,028.60x = 18,036.06 × 9,556.12
  4. Step 4: Simplify right side
    12,028.60x = 172,354,753.69
  5. Step 5: Solve for x
    x = 172,354,753.69/12,028.60
  6. Step 6: Final answer
    x = 14,328.75

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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.