Home / 8,076.32-11,142.62-4,538.78

Finding the Fourth Proportional to 8,076.32, 11,142.62 and 4,538.78

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Solution

The fourth proportional to 8,076.32, 11,142.62 and 4,538.78 is: 6,262.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.32 : 11,142.62 = 4,538.78 : x
  2. Step 2: Convert to fraction form
    8,076.32/11,142.62 = 4,538.78/x
  3. Step 3: Cross multiply
    8,076.32x = 11,142.62 × 4,538.78
  4. Step 4: Simplify right side
    8,076.32x = 50,573,900.80
  5. Step 5: Solve for x
    x = 50,573,900.80/8,076.32
  6. Step 6: Final answer
    x = 6,262.00

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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.