Home / 12,892.12-19,340.60-4,124.68

Finding the Fourth Proportional to 12,892.12, 19,340.60 and 4,124.68

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Solution

The fourth proportional to 12,892.12, 19,340.60 and 4,124.68 is: 6,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.12 : 19,340.60 = 4,124.68 : x
  2. Step 2: Convert to fraction form
    12,892.12/19,340.60 = 4,124.68/x
  3. Step 3: Cross multiply
    12,892.12x = 19,340.60 × 4,124.68
  4. Step 4: Simplify right side
    12,892.12x = 79,773,786.01
  5. Step 5: Solve for x
    x = 79,773,786.01/12,892.12
  6. Step 6: Final answer
    x = 6,187.79

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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.