Home / 8,331.26-12,499.62-3,405.04

Finding the Fourth Proportional to 8,331.26, 12,499.62 and 3,405.04

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Solution

The fourth proportional to 8,331.26, 12,499.62 and 3,405.04 is: 5,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.26 : 12,499.62 = 3,405.04 : x
  2. Step 2: Convert to fraction form
    8,331.26/12,499.62 = 3,405.04/x
  3. Step 3: Cross multiply
    8,331.26x = 12,499.62 × 3,405.04
  4. Step 4: Simplify right side
    8,331.26x = 42,561,662.07
  5. Step 5: Solve for x
    x = 42,561,662.07/8,331.26
  6. Step 6: Final answer
    x = 5,108.67

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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.