Home / 10,990.89-16,464.36-6,605.96

Finding the Fourth Proportional to 10,990.89, 16,464.36 and 6,605.96

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Solution

The fourth proportional to 10,990.89, 16,464.36 and 6,605.96 is: 9,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.89 : 16,464.36 = 6,605.96 : x
  2. Step 2: Convert to fraction form
    10,990.89/16,464.36 = 6,605.96/x
  3. Step 3: Cross multiply
    10,990.89x = 16,464.36 × 6,605.96
  4. Step 4: Simplify right side
    10,990.89x = 108,762,846.04
  5. Step 5: Solve for x
    x = 108,762,846.04/10,990.89
  6. Step 6: Final answer
    x = 9,895.73

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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.