Home / 8,923.70-12,311.16-5,736.45

Finding the Fourth Proportional to 8,923.70, 12,311.16 and 5,736.45

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Solution

The fourth proportional to 8,923.70, 12,311.16 and 5,736.45 is: 7,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.70 : 12,311.16 = 5,736.45 : x
  2. Step 2: Convert to fraction form
    8,923.70/12,311.16 = 5,736.45/x
  3. Step 3: Cross multiply
    8,923.70x = 12,311.16 × 5,736.45
  4. Step 4: Simplify right side
    8,923.70x = 70,622,353.78
  5. Step 5: Solve for x
    x = 70,622,353.78/8,923.70
  6. Step 6: Final answer
    x = 7,914.03

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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.