Home / 10,989.01-16,485.64-3,591.48

Finding the Fourth Proportional to 10,989.01, 16,485.64 and 3,591.48

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Solution

The fourth proportional to 10,989.01, 16,485.64 and 3,591.48 is: 5,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.01 : 16,485.64 = 3,591.48 : x
  2. Step 2: Convert to fraction form
    10,989.01/16,485.64 = 3,591.48/x
  3. Step 3: Cross multiply
    10,989.01x = 16,485.64 × 3,591.48
  4. Step 4: Simplify right side
    10,989.01x = 59,207,846.35
  5. Step 5: Solve for x
    x = 59,207,846.35/10,989.01
  6. Step 6: Final answer
    x = 5,387.91

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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.