Home / 8,102.07-12,145.03-3,423.26

Finding the Fourth Proportional to 8,102.07, 12,145.03 and 3,423.26

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Solution

The fourth proportional to 8,102.07, 12,145.03 and 3,423.26 is: 5,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.07 : 12,145.03 = 3,423.26 : x
  2. Step 2: Convert to fraction form
    8,102.07/12,145.03 = 3,423.26/x
  3. Step 3: Cross multiply
    8,102.07x = 12,145.03 × 3,423.26
  4. Step 4: Simplify right side
    8,102.07x = 41,575,534.67
  5. Step 5: Solve for x
    x = 41,575,534.67/8,102.07
  6. Step 6: Final answer
    x = 5,131.47

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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.