Home / 9,403.44-12,976.38-5,424

Finding the Fourth Proportional to 9,403.44, 12,976.38 and 5,424

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Solution

The fourth proportional to 9,403.44, 12,976.38 and 5,424 is: 7,484.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.44 : 12,976.38 = 5,424 : x
  2. Step 2: Convert to fraction form
    9,403.44/12,976.38 = 5,424/x
  3. Step 3: Cross multiply
    9,403.44x = 12,976.38 × 5,424
  4. Step 4: Simplify right side
    9,403.44x = 70,383,885.12
  5. Step 5: Solve for x
    x = 70,383,885.12/9,403.44
  6. Step 6: Final answer
    x = 7,484.91

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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.