Home / 12,408.24-18,612.47-3,643.30

Finding the Fourth Proportional to 12,408.24, 18,612.47 and 3,643.30

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Solution

The fourth proportional to 12,408.24, 18,612.47 and 3,643.30 is: 5,464.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.24 : 18,612.47 = 3,643.30 : x
  2. Step 2: Convert to fraction form
    12,408.24/18,612.47 = 3,643.30/x
  3. Step 3: Cross multiply
    12,408.24x = 18,612.47 × 3,643.30
  4. Step 4: Simplify right side
    12,408.24x = 67,810,811.95
  5. Step 5: Solve for x
    x = 67,810,811.95/12,408.24
  6. Step 6: Final answer
    x = 5,464.98

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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.