Home / 12,628.26-17,427.18-7,324.68

Finding the Fourth Proportional to 12,628.26, 17,427.18 and 7,324.68

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Solution

The fourth proportional to 12,628.26, 17,427.18 and 7,324.68 is: 10,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.26 : 17,427.18 = 7,324.68 : x
  2. Step 2: Convert to fraction form
    12,628.26/17,427.18 = 7,324.68/x
  3. Step 3: Cross multiply
    12,628.26x = 17,427.18 × 7,324.68
  4. Step 4: Simplify right side
    12,628.26x = 127,648,516.80
  5. Step 5: Solve for x
    x = 127,648,516.80/12,628.26
  6. Step 6: Final answer
    x = 10,108.16

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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.