Home / 15,579.64-23,372.54-5,719

Finding the Fourth Proportional to 15,579.64, 23,372.54 and 5,719

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Solution

The fourth proportional to 15,579.64, 23,372.54 and 5,719 is: 8,579.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.64 : 23,372.54 = 5,719 : x
  2. Step 2: Convert to fraction form
    15,579.64/23,372.54 = 5,719/x
  3. Step 3: Cross multiply
    15,579.64x = 23,372.54 × 5,719
  4. Step 4: Simplify right side
    15,579.64x = 133,667,527.67
  5. Step 5: Solve for x
    x = 133,667,527.67/15,579.64
  6. Step 6: Final answer
    x = 8,579.63

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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.