Home / 11,455.38-17,172.12-7,282.48

Finding the Fourth Proportional to 11,455.38, 17,172.12 and 7,282.48

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Solution

The fourth proportional to 11,455.38, 17,172.12 and 7,282.48 is: 10,916.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.38 : 17,172.12 = 7,282.48 : x
  2. Step 2: Convert to fraction form
    11,455.38/17,172.12 = 7,282.48/x
  3. Step 3: Cross multiply
    11,455.38x = 17,172.12 × 7,282.48
  4. Step 4: Simplify right side
    11,455.38x = 125,055,620.46
  5. Step 5: Solve for x
    x = 125,055,620.46/11,455.38
  6. Step 6: Final answer
    x = 10,916.76

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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.