Home / 9,188.12-13,781.04-2,947.64

Finding the Fourth Proportional to 9,188.12, 13,781.04 and 2,947.64

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Solution

The fourth proportional to 9,188.12, 13,781.04 and 2,947.64 is: 4,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.12 : 13,781.04 = 2,947.64 : x
  2. Step 2: Convert to fraction form
    9,188.12/13,781.04 = 2,947.64/x
  3. Step 3: Cross multiply
    9,188.12x = 13,781.04 × 2,947.64
  4. Step 4: Simplify right side
    9,188.12x = 40,621,544.75
  5. Step 5: Solve for x
    x = 40,621,544.75/9,188.12
  6. Step 6: Final answer
    x = 4,421.09

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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.