Home / 8,076.11-11,145.20-4,721.49

Finding the Fourth Proportional to 8,076.11, 11,145.20 and 4,721.49

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Solution

The fourth proportional to 8,076.11, 11,145.20 and 4,721.49 is: 6,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.11 : 11,145.20 = 4,721.49 : x
  2. Step 2: Convert to fraction form
    8,076.11/11,145.20 = 4,721.49/x
  3. Step 3: Cross multiply
    8,076.11x = 11,145.20 × 4,721.49
  4. Step 4: Simplify right side
    8,076.11x = 52,621,926.74
  5. Step 5: Solve for x
    x = 52,621,926.74/8,076.11
  6. Step 6: Final answer
    x = 6,515.76

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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.