Home / 12,284.45-18,426.60-3,519.38

Finding the Fourth Proportional to 12,284.45, 18,426.60 and 3,519.38

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Solution

The fourth proportional to 12,284.45, 18,426.60 and 3,519.38 is: 5,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,284.45 : 18,426.60 = 3,519.38 : x
  2. Step 2: Convert to fraction form
    12,284.45/18,426.60 = 3,519.38/x
  3. Step 3: Cross multiply
    12,284.45x = 18,426.60 × 3,519.38
  4. Step 4: Simplify right side
    12,284.45x = 64,850,207.51
  5. Step 5: Solve for x
    x = 64,850,207.51/12,284.45
  6. Step 6: Final answer
    x = 5,279.05

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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.