Home / 11,336.55-16,990.39-6,408.93

Finding the Fourth Proportional to 11,336.55, 16,990.39 and 6,408.93

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Solution

The fourth proportional to 11,336.55, 16,990.39 and 6,408.93 is: 9,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.55 : 16,990.39 = 6,408.93 : x
  2. Step 2: Convert to fraction form
    11,336.55/16,990.39 = 6,408.93/x
  3. Step 3: Cross multiply
    11,336.55x = 16,990.39 × 6,408.93
  4. Step 4: Simplify right side
    11,336.55x = 108,890,220.18
  5. Step 5: Solve for x
    x = 108,890,220.18/11,336.55
  6. Step 6: Final answer
    x = 9,605.23

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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.