Home / 11,825.81-16,319.57-6,520.58

Finding the Fourth Proportional to 11,825.81, 16,319.57 and 6,520.58

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Solution

The fourth proportional to 11,825.81, 16,319.57 and 6,520.58 is: 8,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.81 : 16,319.57 = 6,520.58 : x
  2. Step 2: Convert to fraction form
    11,825.81/16,319.57 = 6,520.58/x
  3. Step 3: Cross multiply
    11,825.81x = 16,319.57 × 6,520.58
  4. Step 4: Simplify right side
    11,825.81x = 106,413,061.75
  5. Step 5: Solve for x
    x = 106,413,061.75/11,825.81
  6. Step 6: Final answer
    x = 8,998.37

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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.