Home / 9,186.32-13,779.48-3,989.36

Finding the Fourth Proportional to 9,186.32, 13,779.48 and 3,989.36

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Solution

The fourth proportional to 9,186.32, 13,779.48 and 3,989.36 is: 5,984.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.32 : 13,779.48 = 3,989.36 : x
  2. Step 2: Convert to fraction form
    9,186.32/13,779.48 = 3,989.36/x
  3. Step 3: Cross multiply
    9,186.32x = 13,779.48 × 3,989.36
  4. Step 4: Simplify right side
    9,186.32x = 54,971,306.33
  5. Step 5: Solve for x
    x = 54,971,306.33/9,186.32
  6. Step 6: Final answer
    x = 5,984.04

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Similar ratio
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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.