Home / 12,684.12-17,500.93-7,651.28

Finding the Fourth Proportional to 12,684.12, 17,500.93 and 7,651.28

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Solution

The fourth proportional to 12,684.12, 17,500.93 and 7,651.28 is: 10,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.12 : 17,500.93 = 7,651.28 : x
  2. Step 2: Convert to fraction form
    12,684.12/17,500.93 = 7,651.28/x
  3. Step 3: Cross multiply
    12,684.12x = 17,500.93 × 7,651.28
  4. Step 4: Simplify right side
    12,684.12x = 133,904,540.31
  5. Step 5: Solve for x
    x = 133,904,540.31/12,684.12
  6. Step 6: Final answer
    x = 10,556.87

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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.