Home / 17,145.15-25,719.57-5,455.64

Finding the Fourth Proportional to 17,145.15, 25,719.57 and 5,455.64

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Solution

The fourth proportional to 17,145.15, 25,719.57 and 5,455.64 is: 8,184.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.15 : 25,719.57 = 5,455.64 : x
  2. Step 2: Convert to fraction form
    17,145.15/25,719.57 = 5,455.64/x
  3. Step 3: Cross multiply
    17,145.15x = 25,719.57 × 5,455.64
  4. Step 4: Simplify right side
    17,145.15x = 140,316,586.28
  5. Step 5: Solve for x
    x = 140,316,586.28/17,145.15
  6. Step 6: Final answer
    x = 8,184.04

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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.