Home / 12,684.44-17,500.56-7,650.20

Finding the Fourth Proportional to 12,684.44, 17,500.56 and 7,650.20

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Solution

The fourth proportional to 12,684.44, 17,500.56 and 7,650.20 is: 10,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.44 : 17,500.56 = 7,650.20 : x
  2. Step 2: Convert to fraction form
    12,684.44/17,500.56 = 7,650.20/x
  3. Step 3: Cross multiply
    12,684.44x = 17,500.56 × 7,650.20
  4. Step 4: Simplify right side
    12,684.44x = 133,882,784.11
  5. Step 5: Solve for x
    x = 133,882,784.11/12,684.44
  6. Step 6: Final answer
    x = 10,554.88

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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.