Home / 17,140.05-25,712.64-5,455.89

Finding the Fourth Proportional to 17,140.05, 25,712.64 and 5,455.89

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Solution

The fourth proportional to 17,140.05, 25,712.64 and 5,455.89 is: 8,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,140.05 : 25,712.64 = 5,455.89 : x
  2. Step 2: Convert to fraction form
    17,140.05/25,712.64 = 5,455.89/x
  3. Step 3: Cross multiply
    17,140.05x = 25,712.64 × 5,455.89
  4. Step 4: Simplify right side
    17,140.05x = 140,285,335.45
  5. Step 5: Solve for x
    x = 140,285,335.45/17,140.05
  6. Step 6: Final answer
    x = 8,184.65

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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.