Home / 12,015.48-18,021.77-3,251.08

Finding the Fourth Proportional to 12,015.48, 18,021.77 and 3,251.08

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Solution

The fourth proportional to 12,015.48, 18,021.77 and 3,251.08 is: 4,876.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.48 : 18,021.77 = 3,251.08 : x
  2. Step 2: Convert to fraction form
    12,015.48/18,021.77 = 3,251.08/x
  3. Step 3: Cross multiply
    12,015.48x = 18,021.77 × 3,251.08
  4. Step 4: Simplify right side
    12,015.48x = 58,590,125.90
  5. Step 5: Solve for x
    x = 58,590,125.90/12,015.48
  6. Step 6: Final answer
    x = 4,876.22

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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.