Home / 7,816.34-11,720.96-3,371.90

Finding the Fourth Proportional to 7,816.34, 11,720.96 and 3,371.90

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Solution

The fourth proportional to 7,816.34, 11,720.96 and 3,371.90 is: 5,056.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.34 : 11,720.96 = 3,371.90 : x
  2. Step 2: Convert to fraction form
    7,816.34/11,720.96 = 3,371.90/x
  3. Step 3: Cross multiply
    7,816.34x = 11,720.96 × 3,371.90
  4. Step 4: Simplify right side
    7,816.34x = 39,521,905.02
  5. Step 5: Solve for x
    x = 39,521,905.02/7,816.34
  6. Step 6: Final answer
    x = 5,056.32

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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.