Home / 8,399.60-11,592.57-5,424.09

Finding the Fourth Proportional to 8,399.60, 11,592.57 and 5,424.09

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Solution

The fourth proportional to 8,399.60, 11,592.57 and 5,424.09 is: 7,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.60 : 11,592.57 = 5,424.09 : x
  2. Step 2: Convert to fraction form
    8,399.60/11,592.57 = 5,424.09/x
  3. Step 3: Cross multiply
    8,399.60x = 11,592.57 × 5,424.09
  4. Step 4: Simplify right side
    8,399.60x = 62,879,143.01
  5. Step 5: Solve for x
    x = 62,879,143.01/8,399.60
  6. Step 6: Final answer
    x = 7,485.97

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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.