Home / 7,543.38-11,305.32-4,211.55

Finding the Fourth Proportional to 7,543.38, 11,305.32 and 4,211.55

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Solution

The fourth proportional to 7,543.38, 11,305.32 and 4,211.55 is: 6,311.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.38 : 11,305.32 = 4,211.55 : x
  2. Step 2: Convert to fraction form
    7,543.38/11,305.32 = 4,211.55/x
  3. Step 3: Cross multiply
    7,543.38x = 11,305.32 × 4,211.55
  4. Step 4: Simplify right side
    7,543.38x = 47,612,920.45
  5. Step 5: Solve for x
    x = 47,612,920.45/7,543.38
  6. Step 6: Final answer
    x = 6,311.88

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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.