Home / 10,930.86-16,399.26-4,361.70

Finding the Fourth Proportional to 10,930.86, 16,399.26 and 4,361.70

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Solution

The fourth proportional to 10,930.86, 16,399.26 and 4,361.70 is: 6,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.86 : 16,399.26 = 4,361.70 : x
  2. Step 2: Convert to fraction form
    10,930.86/16,399.26 = 4,361.70/x
  3. Step 3: Cross multiply
    10,930.86x = 16,399.26 × 4,361.70
  4. Step 4: Simplify right side
    10,930.86x = 71,528,652.34
  5. Step 5: Solve for x
    x = 71,528,652.34/10,930.86
  6. Step 6: Final answer
    x = 6,543.74

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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.