Home / 11,723.32-16,178.70-7,007.50

Finding the Fourth Proportional to 11,723.32, 16,178.70 and 7,007.50

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Solution

The fourth proportional to 11,723.32, 16,178.70 and 7,007.50 is: 9,670.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.32 : 16,178.70 = 7,007.50 : x
  2. Step 2: Convert to fraction form
    11,723.32/16,178.70 = 7,007.50/x
  3. Step 3: Cross multiply
    11,723.32x = 16,178.70 × 7,007.50
  4. Step 4: Simplify right side
    11,723.32x = 113,372,240.25
  5. Step 5: Solve for x
    x = 113,372,240.25/11,723.32
  6. Step 6: Final answer
    x = 9,670.66

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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.