Home / 10,543.08-15,816.78-3,147.96

Finding the Fourth Proportional to 10,543.08, 15,816.78 and 3,147.96

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Solution

The fourth proportional to 10,543.08, 15,816.78 and 3,147.96 is: 4,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.08 : 15,816.78 = 3,147.96 : x
  2. Step 2: Convert to fraction form
    10,543.08/15,816.78 = 3,147.96/x
  3. Step 3: Cross multiply
    10,543.08x = 15,816.78 × 3,147.96
  4. Step 4: Simplify right side
    10,543.08x = 49,790,590.77
  5. Step 5: Solve for x
    x = 49,790,590.77/10,543.08
  6. Step 6: Final answer
    x = 4,722.58

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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.