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Finding the Fourth Proportional to 9,115.53, 13,679.06 and 5,227.53

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Solution

The fourth proportional to 9,115.53, 13,679.06 and 5,227.53 is: 7,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.53 : 13,679.06 = 5,227.53 : x
  2. Step 2: Convert to fraction form
    9,115.53/13,679.06 = 5,227.53/x
  3. Step 3: Cross multiply
    9,115.53x = 13,679.06 × 5,227.53
  4. Step 4: Simplify right side
    9,115.53x = 71,507,670.38
  5. Step 5: Solve for x
    x = 71,507,670.38/9,115.53
  6. Step 6: Final answer
    x = 7,844.60

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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.