Home / 12,104.48-18,156.72-3,784.16

Finding the Fourth Proportional to 12,104.48, 18,156.72 and 3,784.16

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Solution

The fourth proportional to 12,104.48, 18,156.72 and 3,784.16 is: 5,676.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104.48 : 18,156.72 = 3,784.16 : x
  2. Step 2: Convert to fraction form
    12,104.48/18,156.72 = 3,784.16/x
  3. Step 3: Cross multiply
    12,104.48x = 18,156.72 × 3,784.16
  4. Step 4: Simplify right side
    12,104.48x = 68,707,933.56
  5. Step 5: Solve for x
    x = 68,707,933.56/12,104.48
  6. Step 6: Final answer
    x = 5,676.24

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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.