Home / 11,825.54-16,318.50-6,520.40

Finding the Fourth Proportional to 11,825.54, 16,318.50 and 6,520.40

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Solution

The fourth proportional to 11,825.54, 16,318.50 and 6,520.40 is: 8,997.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.54 : 16,318.50 = 6,520.40 : x
  2. Step 2: Convert to fraction form
    11,825.54/16,318.50 = 6,520.40/x
  3. Step 3: Cross multiply
    11,825.54x = 16,318.50 × 6,520.40
  4. Step 4: Simplify right side
    11,825.54x = 106,403,147.40
  5. Step 5: Solve for x
    x = 106,403,147.40/11,825.54
  6. Step 6: Final answer
    x = 8,997.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.