Home / 12,009.29-18,052.68-11,135.84

Finding the Fourth Proportional to 12,009.29, 18,052.68 and 11,135.84

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Solution

The fourth proportional to 12,009.29, 18,052.68 and 11,135.84 is: 16,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009.29 : 18,052.68 = 11,135.84 : x
  2. Step 2: Convert to fraction form
    12,009.29/18,052.68 = 11,135.84/x
  3. Step 3: Cross multiply
    12,009.29x = 18,052.68 × 11,135.84
  4. Step 4: Simplify right side
    12,009.29x = 201,031,756.05
  5. Step 5: Solve for x
    x = 201,031,756.05/12,009.29
  6. Step 6: Final answer
    x = 16,739.69

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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.