Home / 8,735.28-13,102.76-2,161.46

Finding the Fourth Proportional to 8,735.28, 13,102.76 and 2,161.46

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Solution

The fourth proportional to 8,735.28, 13,102.76 and 2,161.46 is: 3,242.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.28 : 13,102.76 = 2,161.46 : x
  2. Step 2: Convert to fraction form
    8,735.28/13,102.76 = 2,161.46/x
  3. Step 3: Cross multiply
    8,735.28x = 13,102.76 × 2,161.46
  4. Step 4: Simplify right side
    8,735.28x = 28,321,129.79
  5. Step 5: Solve for x
    x = 28,321,129.79/8,735.28
  6. Step 6: Final answer
    x = 3,242.16

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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.