Home / 12,504.07-18,761.28-5,480.45

Finding the Fourth Proportional to 12,504.07, 18,761.28 and 5,480.45

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Solution

The fourth proportional to 12,504.07, 18,761.28 and 5,480.45 is: 8,222.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.07 : 18,761.28 = 5,480.45 : x
  2. Step 2: Convert to fraction form
    12,504.07/18,761.28 = 5,480.45/x
  3. Step 3: Cross multiply
    12,504.07x = 18,761.28 × 5,480.45
  4. Step 4: Simplify right side
    12,504.07x = 102,820,229.57
  5. Step 5: Solve for x
    x = 102,820,229.57/12,504.07
  6. Step 6: Final answer
    x = 8,222.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.