Home / 12,556.70-17,329.20-7,251.56

Finding the Fourth Proportional to 12,556.70, 17,329.20 and 7,251.56

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Solution

The fourth proportional to 12,556.70, 17,329.20 and 7,251.56 is: 10,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.70 : 17,329.20 = 7,251.56 : x
  2. Step 2: Convert to fraction form
    12,556.70/17,329.20 = 7,251.56/x
  3. Step 3: Cross multiply
    12,556.70x = 17,329.20 × 7,251.56
  4. Step 4: Simplify right side
    12,556.70x = 125,663,733.55
  5. Step 5: Solve for x
    x = 125,663,733.55/12,556.70
  6. Step 6: Final answer
    x = 10,007.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.