Home / 10,781.86-16,176.72-4,543.44

Finding the Fourth Proportional to 10,781.86, 16,176.72 and 4,543.44

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Solution

The fourth proportional to 10,781.86, 16,176.72 and 4,543.44 is: 6,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.86 : 16,176.72 = 4,543.44 : x
  2. Step 2: Convert to fraction form
    10,781.86/16,176.72 = 4,543.44/x
  3. Step 3: Cross multiply
    10,781.86x = 16,176.72 × 4,543.44
  4. Step 4: Simplify right side
    10,781.86x = 73,497,956.72
  5. Step 5: Solve for x
    x = 73,497,956.72/10,781.86
  6. Step 6: Final answer
    x = 6,816.82

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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.