Home / 11,455.87-17,175.04-7,935.76

Finding the Fourth Proportional to 11,455.87, 17,175.04 and 7,935.76

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Solution

The fourth proportional to 11,455.87, 17,175.04 and 7,935.76 is: 11,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.87 : 17,175.04 = 7,935.76 : x
  2. Step 2: Convert to fraction form
    11,455.87/17,175.04 = 7,935.76/x
  3. Step 3: Cross multiply
    11,455.87x = 17,175.04 × 7,935.76
  4. Step 4: Simplify right side
    11,455.87x = 136,296,995.43
  5. Step 5: Solve for x
    x = 136,296,995.43/11,455.87
  6. Step 6: Final answer
    x = 11,897.57

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1.5x scale

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.