Home / 8,123.56-11,209.38-4,538.09

Finding the Fourth Proportional to 8,123.56, 11,209.38 and 4,538.09

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Solution

The fourth proportional to 8,123.56, 11,209.38 and 4,538.09 is: 6,261.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.56 : 11,209.38 = 4,538.09 : x
  2. Step 2: Convert to fraction form
    8,123.56/11,209.38 = 4,538.09/x
  3. Step 3: Cross multiply
    8,123.56x = 11,209.38 × 4,538.09
  4. Step 4: Simplify right side
    8,123.56x = 50,869,175.28
  5. Step 5: Solve for x
    x = 50,869,175.28/8,123.56
  6. Step 6: Final answer
    x = 6,261.93

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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.