Home / 7,961.37-10,987.33-5,134.62

Finding the Fourth Proportional to 7,961.37, 10,987.33 and 5,134.62

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Solution

The fourth proportional to 7,961.37, 10,987.33 and 5,134.62 is: 7,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.37 : 10,987.33 = 5,134.62 : x
  2. Step 2: Convert to fraction form
    7,961.37/10,987.33 = 5,134.62/x
  3. Step 3: Cross multiply
    7,961.37x = 10,987.33 × 5,134.62
  4. Step 4: Simplify right side
    7,961.37x = 56,415,764.36
  5. Step 5: Solve for x
    x = 56,415,764.36/7,961.37
  6. Step 6: Final answer
    x = 7,086.19

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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.