Home / 9,211.26-12,711.36-5,674.38

Finding the Fourth Proportional to 9,211.26, 12,711.36 and 5,674.38

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Solution

The fourth proportional to 9,211.26, 12,711.36 and 5,674.38 is: 7,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.26 : 12,711.36 = 5,674.38 : x
  2. Step 2: Convert to fraction form
    9,211.26/12,711.36 = 5,674.38/x
  3. Step 3: Cross multiply
    9,211.26x = 12,711.36 × 5,674.38
  4. Step 4: Simplify right side
    9,211.26x = 72,129,086.96
  5. Step 5: Solve for x
    x = 72,129,086.96/9,211.26
  6. Step 6: Final answer
    x = 7,830.53

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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.