Home / 9,997.06-13,795.74-5,520.55

Finding the Fourth Proportional to 9,997.06, 13,795.74 and 5,520.55

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Solution

The fourth proportional to 9,997.06, 13,795.74 and 5,520.55 is: 7,618.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.06 : 13,795.74 = 5,520.55 : x
  2. Step 2: Convert to fraction form
    9,997.06/13,795.74 = 5,520.55/x
  3. Step 3: Cross multiply
    9,997.06x = 13,795.74 × 5,520.55
  4. Step 4: Simplify right side
    9,997.06x = 76,160,072.46
  5. Step 5: Solve for x
    x = 76,160,072.46/9,997.06
  6. Step 6: Final answer
    x = 7,618.25

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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.