Home / 11,072.32-15,279.36-6,356.50

Finding the Fourth Proportional to 11,072.32, 15,279.36 and 6,356.50

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Solution

The fourth proportional to 11,072.32, 15,279.36 and 6,356.50 is: 8,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.32 : 15,279.36 = 6,356.50 : x
  2. Step 2: Convert to fraction form
    11,072.32/15,279.36 = 6,356.50/x
  3. Step 3: Cross multiply
    11,072.32x = 15,279.36 × 6,356.50
  4. Step 4: Simplify right side
    11,072.32x = 97,123,251.84
  5. Step 5: Solve for x
    x = 97,123,251.84/11,072.32
  6. Step 6: Final answer
    x = 8,771.72

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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.