Home / 12,412.11-18,614.21-4,090.57

Finding the Fourth Proportional to 12,412.11, 18,614.21 and 4,090.57

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Solution

The fourth proportional to 12,412.11, 18,614.21 and 4,090.57 is: 6,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.11 : 18,614.21 = 4,090.57 : x
  2. Step 2: Convert to fraction form
    12,412.11/18,614.21 = 4,090.57/x
  3. Step 3: Cross multiply
    12,412.11x = 18,614.21 × 4,090.57
  4. Step 4: Simplify right side
    12,412.11x = 76,142,729.00
  5. Step 5: Solve for x
    x = 76,142,729.00/12,412.11
  6. Step 6: Final answer
    x = 6,134.55

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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.