Home / 12,516.85-17,272.06-7,480.07

Finding the Fourth Proportional to 12,516.85, 17,272.06 and 7,480.07

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Solution

The fourth proportional to 12,516.85, 17,272.06 and 7,480.07 is: 10,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.85 : 17,272.06 = 7,480.07 : x
  2. Step 2: Convert to fraction form
    12,516.85/17,272.06 = 7,480.07/x
  3. Step 3: Cross multiply
    12,516.85x = 17,272.06 × 7,480.07
  4. Step 4: Simplify right side
    12,516.85x = 129,196,217.84
  5. Step 5: Solve for x
    x = 129,196,217.84/12,516.85
  6. Step 6: Final answer
    x = 10,321.78

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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.