Home / 10,645.12-15,968.84-4,076.88

Finding the Fourth Proportional to 10,645.12, 15,968.84 and 4,076.88

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Solution

The fourth proportional to 10,645.12, 15,968.84 and 4,076.88 is: 6,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.12 : 15,968.84 = 4,076.88 : x
  2. Step 2: Convert to fraction form
    10,645.12/15,968.84 = 4,076.88/x
  3. Step 3: Cross multiply
    10,645.12x = 15,968.84 × 4,076.88
  4. Step 4: Simplify right side
    10,645.12x = 65,103,044.42
  5. Step 5: Solve for x
    x = 65,103,044.42/10,645.12
  6. Step 6: Final answer
    x = 6,115.76

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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.