Home / 12,421.15-18,634.05-4,101.54

Finding the Fourth Proportional to 12,421.15, 18,634.05 and 4,101.54

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Solution

The fourth proportional to 12,421.15, 18,634.05 and 4,101.54 is: 6,153.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421.15 : 18,634.05 = 4,101.54 : x
  2. Step 2: Convert to fraction form
    12,421.15/18,634.05 = 4,101.54/x
  3. Step 3: Cross multiply
    12,421.15x = 18,634.05 × 4,101.54
  4. Step 4: Simplify right side
    12,421.15x = 76,428,231.56
  5. Step 5: Solve for x
    x = 76,428,231.56/12,421.15
  6. Step 6: Final answer
    x = 6,153.07

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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.