Home / 8,975.24-12,383.82-5,388.56

Finding the Fourth Proportional to 8,975.24, 12,383.82 and 5,388.56

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Solution

The fourth proportional to 8,975.24, 12,383.82 and 5,388.56 is: 7,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.24 : 12,383.82 = 5,388.56 : x
  2. Step 2: Convert to fraction form
    8,975.24/12,383.82 = 5,388.56/x
  3. Step 3: Cross multiply
    8,975.24x = 12,383.82 × 5,388.56
  4. Step 4: Simplify right side
    8,975.24x = 66,730,957.10
  5. Step 5: Solve for x
    x = 66,730,957.10/8,975.24
  6. Step 6: Final answer
    x = 7,435.01

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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.