Home / 11,178.54-15,426.65-6,142.44

Finding the Fourth Proportional to 11,178.54, 15,426.65 and 6,142.44

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Solution

The fourth proportional to 11,178.54, 15,426.65 and 6,142.44 is: 8,476.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.54 : 15,426.65 = 6,142.44 : x
  2. Step 2: Convert to fraction form
    11,178.54/15,426.65 = 6,142.44/x
  3. Step 3: Cross multiply
    11,178.54x = 15,426.65 × 6,142.44
  4. Step 4: Simplify right side
    11,178.54x = 94,757,241.31
  5. Step 5: Solve for x
    x = 94,757,241.31/11,178.54
  6. Step 6: Final answer
    x = 8,476.71

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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.