Home / 7,412.64-11,115.84-2,667.36

Finding the Fourth Proportional to 7,412.64, 11,115.84 and 2,667.36

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Solution

The fourth proportional to 7,412.64, 11,115.84 and 2,667.36 is: 3,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.64 : 11,115.84 = 2,667.36 : x
  2. Step 2: Convert to fraction form
    7,412.64/11,115.84 = 2,667.36/x
  3. Step 3: Cross multiply
    7,412.64x = 11,115.84 × 2,667.36
  4. Step 4: Simplify right side
    7,412.64x = 29,649,946.98
  5. Step 5: Solve for x
    x = 29,649,946.98/7,412.64
  6. Step 6: Final answer
    x = 3,999.92

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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.