Home / 7,719.64-11,579.15-5,372.87

Finding the Fourth Proportional to 7,719.64, 11,579.15 and 5,372.87

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Solution

The fourth proportional to 7,719.64, 11,579.15 and 5,372.87 is: 8,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.64 : 11,579.15 = 5,372.87 : x
  2. Step 2: Convert to fraction form
    7,719.64/11,579.15 = 5,372.87/x
  3. Step 3: Cross multiply
    7,719.64x = 11,579.15 × 5,372.87
  4. Step 4: Simplify right side
    7,719.64x = 62,213,223.20
  5. Step 5: Solve for x
    x = 62,213,223.20/7,719.64
  6. Step 6: Final answer
    x = 8,059.09

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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.