Home / 12,451.12-18,676.62-3,686.08

Finding the Fourth Proportional to 12,451.12, 18,676.62 and 3,686.08

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Solution

The fourth proportional to 12,451.12, 18,676.62 and 3,686.08 is: 5,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.12 : 18,676.62 = 3,686.08 : x
  2. Step 2: Convert to fraction form
    12,451.12/18,676.62 = 3,686.08/x
  3. Step 3: Cross multiply
    12,451.12x = 18,676.62 × 3,686.08
  4. Step 4: Simplify right side
    12,451.12x = 68,843,515.45
  5. Step 5: Solve for x
    x = 68,843,515.45/12,451.12
  6. Step 6: Final answer
    x = 5,529.10

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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.