Home / 8,223.45-11,338.38-5,707.68

Finding the Fourth Proportional to 8,223.45, 11,338.38 and 5,707.68

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Solution

The fourth proportional to 8,223.45, 11,338.38 and 5,707.68 is: 7,869.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223.45 : 11,338.38 = 5,707.68 : x
  2. Step 2: Convert to fraction form
    8,223.45/11,338.38 = 5,707.68/x
  3. Step 3: Cross multiply
    8,223.45x = 11,338.38 × 5,707.68
  4. Step 4: Simplify right side
    8,223.45x = 64,715,844.76
  5. Step 5: Solve for x
    x = 64,715,844.76/8,223.45
  6. Step 6: Final answer
    x = 7,869.67

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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.