Home / 7,456.39-11,183.87-1,909.58

Finding the Fourth Proportional to 7,456.39, 11,183.87 and 1,909.58

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Solution

The fourth proportional to 7,456.39, 11,183.87 and 1,909.58 is: 2,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.39 : 11,183.87 = 1,909.58 : x
  2. Step 2: Convert to fraction form
    7,456.39/11,183.87 = 1,909.58/x
  3. Step 3: Cross multiply
    7,456.39x = 11,183.87 × 1,909.58
  4. Step 4: Simplify right side
    7,456.39x = 21,356,443.33
  5. Step 5: Solve for x
    x = 21,356,443.33/7,456.39
  6. Step 6: Final answer
    x = 2,864.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.