Home / 12,421.11-18,629.84-4,101.41

Finding the Fourth Proportional to 12,421.11, 18,629.84 and 4,101.41

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Solution

The fourth proportional to 12,421.11, 18,629.84 and 4,101.41 is: 6,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421.11 : 18,629.84 = 4,101.41 : x
  2. Step 2: Convert to fraction form
    12,421.11/18,629.84 = 4,101.41/x
  3. Step 3: Cross multiply
    12,421.11x = 18,629.84 × 4,101.41
  4. Step 4: Simplify right side
    12,421.11x = 76,408,498.42
  5. Step 5: Solve for x
    x = 76,408,498.42/12,421.11
  6. Step 6: Final answer
    x = 6,151.50

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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.