Home / 8,123.64-11,209.62-5,764.92

Finding the Fourth Proportional to 8,123.64, 11,209.62 and 5,764.92

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Solution

The fourth proportional to 8,123.64, 11,209.62 and 5,764.92 is: 7,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.64 : 11,209.62 = 5,764.92 : x
  2. Step 2: Convert to fraction form
    8,123.64/11,209.62 = 5,764.92/x
  3. Step 3: Cross multiply
    8,123.64x = 11,209.62 × 5,764.92
  4. Step 4: Simplify right side
    8,123.64x = 64,622,562.53
  5. Step 5: Solve for x
    x = 64,622,562.53/8,123.64
  6. Step 6: Final answer
    x = 7,954.88

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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.