Home / 11,724.35-16,178.09-6,688.27

Finding the Fourth Proportional to 11,724.35, 16,178.09 and 6,688.27

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Solution

The fourth proportional to 11,724.35, 16,178.09 and 6,688.27 is: 9,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.35 : 16,178.09 = 6,688.27 : x
  2. Step 2: Convert to fraction form
    11,724.35/16,178.09 = 6,688.27/x
  3. Step 3: Cross multiply
    11,724.35x = 16,178.09 × 6,688.27
  4. Step 4: Simplify right side
    11,724.35x = 108,203,319.67
  5. Step 5: Solve for x
    x = 108,203,319.67/11,724.35
  6. Step 6: Final answer
    x = 9,228.94

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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.