Home / 10,728.68-16,092.78-4,886.84

Finding the Fourth Proportional to 10,728.68, 16,092.78 and 4,886.84

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Solution

The fourth proportional to 10,728.68, 16,092.78 and 4,886.84 is: 7,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.68 : 16,092.78 = 4,886.84 : x
  2. Step 2: Convert to fraction form
    10,728.68/16,092.78 = 4,886.84/x
  3. Step 3: Cross multiply
    10,728.68x = 16,092.78 × 4,886.84
  4. Step 4: Simplify right side
    10,728.68x = 78,642,841.02
  5. Step 5: Solve for x
    x = 78,642,841.02/10,728.68
  6. Step 6: Final answer
    x = 7,330.15

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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.