Home / 11,723.45-16,178.36-6,418.35

Finding the Fourth Proportional to 11,723.45, 16,178.36 and 6,418.35

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Solution

The fourth proportional to 11,723.45, 16,178.36 and 6,418.35 is: 8,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.45 : 16,178.36 = 6,418.35 : x
  2. Step 2: Convert to fraction form
    11,723.45/16,178.36 = 6,418.35/x
  3. Step 3: Cross multiply
    11,723.45x = 16,178.36 × 6,418.35
  4. Step 4: Simplify right side
    11,723.45x = 103,838,344.81
  5. Step 5: Solve for x
    x = 103,838,344.81/11,723.45
  6. Step 6: Final answer
    x = 8,857.32

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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.