Home / 12,415.46-18,623.34-3,650.55

Finding the Fourth Proportional to 12,415.46, 18,623.34 and 3,650.55

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Solution

The fourth proportional to 12,415.46, 18,623.34 and 3,650.55 is: 5,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.46 : 18,623.34 = 3,650.55 : x
  2. Step 2: Convert to fraction form
    12,415.46/18,623.34 = 3,650.55/x
  3. Step 3: Cross multiply
    12,415.46x = 18,623.34 × 3,650.55
  4. Step 4: Simplify right side
    12,415.46x = 67,985,433.84
  5. Step 5: Solve for x
    x = 67,985,433.84/12,415.46
  6. Step 6: Final answer
    x = 5,475.87

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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.