Home / 11,723.66-16,178.16-6,418.34

Finding the Fourth Proportional to 11,723.66, 16,178.16 and 6,418.34

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Solution

The fourth proportional to 11,723.66, 16,178.16 and 6,418.34 is: 8,857.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.66 : 16,178.16 = 6,418.34 : x
  2. Step 2: Convert to fraction form
    11,723.66/16,178.16 = 6,418.34/x
  3. Step 3: Cross multiply
    11,723.66x = 16,178.16 × 6,418.34
  4. Step 4: Simplify right side
    11,723.66x = 103,836,931.45
  5. Step 5: Solve for x
    x = 103,836,931.45/11,723.66
  6. Step 6: Final answer
    x = 8,857.04

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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.