Home / 10,539.68-15,811.80-5,608.60

Finding the Fourth Proportional to 10,539.68, 15,811.80 and 5,608.60

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Solution

The fourth proportional to 10,539.68, 15,811.80 and 5,608.60 is: 8,414.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.68 : 15,811.80 = 5,608.60 : x
  2. Step 2: Convert to fraction form
    10,539.68/15,811.80 = 5,608.60/x
  3. Step 3: Cross multiply
    10,539.68x = 15,811.80 × 5,608.60
  4. Step 4: Simplify right side
    10,539.68x = 88,681,982.42
  5. Step 5: Solve for x
    x = 88,681,982.42/10,539.68
  6. Step 6: Final answer
    x = 8,414.11

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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.