Home / 12,415.30-18,623.52-3,650.26

Finding the Fourth Proportional to 12,415.30, 18,623.52 and 3,650.26

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Solution

The fourth proportional to 12,415.30, 18,623.52 and 3,650.26 is: 5,475.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.30 : 18,623.52 = 3,650.26 : x
  2. Step 2: Convert to fraction form
    12,415.30/18,623.52 = 3,650.26/x
  3. Step 3: Cross multiply
    12,415.30x = 18,623.52 × 3,650.26
  4. Step 4: Simplify right side
    12,415.30x = 67,980,690.12
  5. Step 5: Solve for x
    x = 67,980,690.12/12,415.30
  6. Step 6: Final answer
    x = 5,475.56

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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.