Home / 8,679.32-13,022.62-4,520.38

Finding the Fourth Proportional to 8,679.32, 13,022.62 and 4,520.38

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Solution

The fourth proportional to 8,679.32, 13,022.62 and 4,520.38 is: 6,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.32 : 13,022.62 = 4,520.38 : x
  2. Step 2: Convert to fraction form
    8,679.32/13,022.62 = 4,520.38/x
  3. Step 3: Cross multiply
    8,679.32x = 13,022.62 × 4,520.38
  4. Step 4: Simplify right side
    8,679.32x = 58,867,191.00
  5. Step 5: Solve for x
    x = 58,867,191.00/8,679.32
  6. Step 6: Final answer
    x = 6,782.47

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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.