Home / 11,723.74-16,178.94-6,419.04

Finding the Fourth Proportional to 11,723.74, 16,178.94 and 6,419.04

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Solution

The fourth proportional to 11,723.74, 16,178.94 and 6,419.04 is: 8,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.74 : 16,178.94 = 6,419.04 : x
  2. Step 2: Convert to fraction form
    11,723.74/16,178.94 = 6,419.04/x
  3. Step 3: Cross multiply
    11,723.74x = 16,178.94 × 6,419.04
  4. Step 4: Simplify right side
    11,723.74x = 103,853,263.02
  5. Step 5: Solve for x
    x = 103,853,263.02/11,723.74
  6. Step 6: Final answer
    x = 8,858.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.