Home / 11,350.80-15,647.52-7,983.60

Finding the Fourth Proportional to 11,350.80, 15,647.52 and 7,983.60

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Solution

The fourth proportional to 11,350.80, 15,647.52 and 7,983.60 is: 11,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,350.80 : 15,647.52 = 7,983.60 : x
  2. Step 2: Convert to fraction form
    11,350.80/15,647.52 = 7,983.60/x
  3. Step 3: Cross multiply
    11,350.80x = 15,647.52 × 7,983.60
  4. Step 4: Simplify right side
    11,350.80x = 124,923,540.67
  5. Step 5: Solve for x
    x = 124,923,540.67/11,350.80
  6. Step 6: Final answer
    x = 11,005.70

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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.