Home / 8,543.38-12,816.28-4,157.22

Finding the Fourth Proportional to 8,543.38, 12,816.28 and 4,157.22

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Solution

The fourth proportional to 8,543.38, 12,816.28 and 4,157.22 is: 6,236.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.38 : 12,816.28 = 4,157.22 : x
  2. Step 2: Convert to fraction form
    8,543.38/12,816.28 = 4,157.22/x
  3. Step 3: Cross multiply
    8,543.38x = 12,816.28 × 4,157.22
  4. Step 4: Simplify right side
    8,543.38x = 53,280,095.54
  5. Step 5: Solve for x
    x = 53,280,095.54/8,543.38
  6. Step 6: Final answer
    x = 6,236.42

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1.5x scale

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.