Home / 8,123.58-11,204.55-5,136.54

Finding the Fourth Proportional to 8,123.58, 11,204.55 and 5,136.54

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Solution

The fourth proportional to 8,123.58, 11,204.55 and 5,136.54 is: 7,084.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.58 : 11,204.55 = 5,136.54 : x
  2. Step 2: Convert to fraction form
    8,123.58/11,204.55 = 5,136.54/x
  3. Step 3: Cross multiply
    8,123.58x = 11,204.55 × 5,136.54
  4. Step 4: Simplify right side
    8,123.58x = 57,552,619.26
  5. Step 5: Solve for x
    x = 57,552,619.26/8,123.58
  6. Step 6: Final answer
    x = 7,084.64

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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.