Home / 7,867.74-10,857.33-4,282.78

Finding the Fourth Proportional to 7,867.74, 10,857.33 and 4,282.78

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Solution

The fourth proportional to 7,867.74, 10,857.33 and 4,282.78 is: 5,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.74 : 10,857.33 = 4,282.78 : x
  2. Step 2: Convert to fraction form
    7,867.74/10,857.33 = 4,282.78/x
  3. Step 3: Cross multiply
    7,867.74x = 10,857.33 × 4,282.78
  4. Step 4: Simplify right side
    7,867.74x = 46,499,529.25
  5. Step 5: Solve for x
    x = 46,499,529.25/7,867.74
  6. Step 6: Final answer
    x = 5,910.15

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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.