Home / 11,412.32-17,118.50-3,621.11

Finding the Fourth Proportional to 11,412.32, 17,118.50 and 3,621.11

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Solution

The fourth proportional to 11,412.32, 17,118.50 and 3,621.11 is: 5,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.32 : 17,118.50 = 3,621.11 : x
  2. Step 2: Convert to fraction form
    11,412.32/17,118.50 = 3,621.11/x
  3. Step 3: Cross multiply
    11,412.32x = 17,118.50 × 3,621.11
  4. Step 4: Simplify right side
    11,412.32x = 61,987,867.84
  5. Step 5: Solve for x
    x = 61,987,867.84/11,412.32
  6. Step 6: Final answer
    x = 5,431.66

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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.