Home / 9,123.20-13,676.70-3,278.24

Finding the Fourth Proportional to 9,123.20, 13,676.70 and 3,278.24

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Solution

The fourth proportional to 9,123.20, 13,676.70 and 3,278.24 is: 4,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.20 : 13,676.70 = 3,278.24 : x
  2. Step 2: Convert to fraction form
    9,123.20/13,676.70 = 3,278.24/x
  3. Step 3: Cross multiply
    9,123.20x = 13,676.70 × 3,278.24
  4. Step 4: Simplify right side
    9,123.20x = 44,835,505.01
  5. Step 5: Solve for x
    x = 44,835,505.01/9,123.20
  6. Step 6: Final answer
    x = 4,914.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.