Home / 10,926.42-15,076.20-6,388.23

Finding the Fourth Proportional to 10,926.42, 15,076.20 and 6,388.23

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Solution

The fourth proportional to 10,926.42, 15,076.20 and 6,388.23 is: 8,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.42 : 15,076.20 = 6,388.23 : x
  2. Step 2: Convert to fraction form
    10,926.42/15,076.20 = 6,388.23/x
  3. Step 3: Cross multiply
    10,926.42x = 15,076.20 × 6,388.23
  4. Step 4: Simplify right side
    10,926.42x = 96,310,176.59
  5. Step 5: Solve for x
    x = 96,310,176.59/10,926.42
  6. Step 6: Final answer
    x = 8,814.43

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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.