Home / 12,039.21-18,052.32-5,461.80

Finding the Fourth Proportional to 12,039.21, 18,052.32 and 5,461.80

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Solution

The fourth proportional to 12,039.21, 18,052.32 and 5,461.80 is: 8,189.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.21 : 18,052.32 = 5,461.80 : x
  2. Step 2: Convert to fraction form
    12,039.21/18,052.32 = 5,461.80/x
  3. Step 3: Cross multiply
    12,039.21x = 18,052.32 × 5,461.80
  4. Step 4: Simplify right side
    12,039.21x = 98,598,235.76
  5. Step 5: Solve for x
    x = 98,598,235.76/12,039.21
  6. Step 6: Final answer
    x = 8,189.76

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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.