Home / 9,403.39-12,976.09-5,211.67

Finding the Fourth Proportional to 9,403.39, 12,976.09 and 5,211.67

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Solution

The fourth proportional to 9,403.39, 12,976.09 and 5,211.67 is: 7,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.39 : 12,976.09 = 5,211.67 : x
  2. Step 2: Convert to fraction form
    9,403.39/12,976.09 = 5,211.67/x
  3. Step 3: Cross multiply
    9,403.39x = 12,976.09 × 5,211.67
  4. Step 4: Simplify right side
    9,403.39x = 67,627,098.97
  5. Step 5: Solve for x
    x = 67,627,098.97/9,403.39
  6. Step 6: Final answer
    x = 7,191.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.