Home / 12,451.64-18,677.52-3,686.72

Finding the Fourth Proportional to 12,451.64, 18,677.52 and 3,686.72

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Solution

The fourth proportional to 12,451.64, 18,677.52 and 3,686.72 is: 5,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.64 : 18,677.52 = 3,686.72 : x
  2. Step 2: Convert to fraction form
    12,451.64/18,677.52 = 3,686.72/x
  3. Step 3: Cross multiply
    12,451.64x = 18,677.52 × 3,686.72
  4. Step 4: Simplify right side
    12,451.64x = 68,858,786.53
  5. Step 5: Solve for x
    x = 68,858,786.53/12,451.64
  6. Step 6: Final answer
    x = 5,530.10

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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.