Home / 9,996.91-13,795.88-5,520.58

Finding the Fourth Proportional to 9,996.91, 13,795.88 and 5,520.58

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Solution

The fourth proportional to 9,996.91, 13,795.88 and 5,520.58 is: 7,618.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,996.91 : 13,795.88 = 5,520.58 : x
  2. Step 2: Convert to fraction form
    9,996.91/13,795.88 = 5,520.58/x
  3. Step 3: Cross multiply
    9,996.91x = 13,795.88 × 5,520.58
  4. Step 4: Simplify right side
    9,996.91x = 76,161,197.12
  5. Step 5: Solve for x
    x = 76,161,197.12/9,996.91
  6. Step 6: Final answer
    x = 7,618.48

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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.