Home / 12,415.25-18,622.86-3,650.16

Finding the Fourth Proportional to 12,415.25, 18,622.86 and 3,650.16

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Solution

The fourth proportional to 12,415.25, 18,622.86 and 3,650.16 is: 5,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.25 : 18,622.86 = 3,650.16 : x
  2. Step 2: Convert to fraction form
    12,415.25/18,622.86 = 3,650.16/x
  3. Step 3: Cross multiply
    12,415.25x = 18,622.86 × 3,650.16
  4. Step 4: Simplify right side
    12,415.25x = 67,976,418.66
  5. Step 5: Solve for x
    x = 67,976,418.66/12,415.25
  6. Step 6: Final answer
    x = 5,475.24

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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.