Home / 8,747.21-13,120.58-2,173.32

Finding the Fourth Proportional to 8,747.21, 13,120.58 and 2,173.32

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Solution

The fourth proportional to 8,747.21, 13,120.58 and 2,173.32 is: 3,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.21 : 13,120.58 = 2,173.32 : x
  2. Step 2: Convert to fraction form
    8,747.21/13,120.58 = 2,173.32/x
  3. Step 3: Cross multiply
    8,747.21x = 13,120.58 × 2,173.32
  4. Step 4: Simplify right side
    8,747.21x = 28,515,224.36
  5. Step 5: Solve for x
    x = 28,515,224.36/8,747.21
  6. Step 6: Final answer
    x = 3,259.92

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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.