Home / 12,415.25-18,619.23-3,648.08

Finding the Fourth Proportional to 12,415.25, 18,619.23 and 3,648.08

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Solution

The fourth proportional to 12,415.25, 18,619.23 and 3,648.08 is: 5,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.25 : 18,619.23 = 3,648.08 : x
  2. Step 2: Convert to fraction form
    12,415.25/18,619.23 = 3,648.08/x
  3. Step 3: Cross multiply
    12,415.25x = 18,619.23 × 3,648.08
  4. Step 4: Simplify right side
    12,415.25x = 67,924,440.58
  5. Step 5: Solve for x
    x = 67,924,440.58/12,415.25
  6. Step 6: Final answer
    x = 5,471.05

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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.