Home / 11,723.49-16,178.42-6,418.32

Finding the Fourth Proportional to 11,723.49, 16,178.42 and 6,418.32

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Solution

The fourth proportional to 11,723.49, 16,178.42 and 6,418.32 is: 8,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.49 : 16,178.42 = 6,418.32 : x
  2. Step 2: Convert to fraction form
    11,723.49/16,178.42 = 6,418.32/x
  3. Step 3: Cross multiply
    11,723.49x = 16,178.42 × 6,418.32
  4. Step 4: Simplify right side
    11,723.49x = 103,838,244.56
  5. Step 5: Solve for x
    x = 103,838,244.56/11,723.49
  6. Step 6: Final answer
    x = 8,857.28

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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.