Home / 8,028.80-12,047.52-5,108.48

Finding the Fourth Proportional to 8,028.80, 12,047.52 and 5,108.48

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Solution

The fourth proportional to 8,028.80, 12,047.52 and 5,108.48 is: 7,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,028.80 : 12,047.52 = 5,108.48 : x
  2. Step 2: Convert to fraction form
    8,028.80/12,047.52 = 5,108.48/x
  3. Step 3: Cross multiply
    8,028.80x = 12,047.52 × 5,108.48
  4. Step 4: Simplify right side
    8,028.80x = 61,544,514.97
  5. Step 5: Solve for x
    x = 61,544,514.97/8,028.80
  6. Step 6: Final answer
    x = 7,665.47

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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.